[arch-commits] Commit in mpfr/trunk (patches.diff)

Antonio Rojas arojas at gemini.archlinux.org
Wed Jul 28 16:47:23 UTC 2021


    Date: Wednesday, July 28, 2021 @ 16:47:23
  Author: arojas
Revision: 420573

Commit patch

Added:
  mpfr/trunk/patches.diff

--------------+
 patches.diff | 2976 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 2976 insertions(+)

Added: patches.diff
===================================================================
--- patches.diff	                        (rev 0)
+++ patches.diff	2021-07-28 16:47:23 UTC (rev 420573)
@@ -0,0 +1,2976 @@
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:40:40.079363480 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:40:40.119363040 +0000
+@@ -0,0 +1 @@
++decimal128-conv
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2020-07-10 11:52:33.000000000 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:40:40.119363040 +0000
+@@ -1 +1 @@
+-4.1.0
++4.1.0-p1
+diff -Naurd mpfr-4.1.0-a/src/get_d128.c mpfr-4.1.0-b/src/get_d128.c
+--- mpfr-4.1.0-a/src/get_d128.c	2020-04-08 22:39:35.000000000 +0000
++++ mpfr-4.1.0-b/src/get_d128.c	2021-02-11 12:40:40.103363216 +0000
+@@ -40,22 +40,21 @@
+ static _Decimal128
+ get_decimal128_nan (void)
+ {
+-  return (_Decimal128) MPFR_DBL_NAN;
++  return 0.0dl / 0.0dl;
+ }
+ 
+ /* construct the decimal128 Inf with given sign */
+ static _Decimal128
+ get_decimal128_inf (int negative)
+ {
+-  return (_Decimal128) (negative ? MPFR_DBL_INFM : MPFR_DBL_INFP);
++  return negative ? - 1.0dl / 0.0dl : 1.0dl / 0.0dl;
+ }
+ 
+ /* construct the decimal128 zero with given sign */
+ static _Decimal128
+ get_decimal128_zero (int negative)
+ {
+-  _Decimal128 zero = 0;
+-  return (_Decimal128) (negative ? -zero : zero);
++  return negative ? - 0.0dl : 0.0dl;
+ }
+ 
+ /* construct the decimal128 smallest non-zero with given sign:
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2020-07-10 11:52:33.000000000 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:40:40.115363084 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0"
++#define MPFR_VERSION_STRING "4.1.0-p1"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2020-07-10 11:52:33.000000000 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:40:40.119363040 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0";
++  return "4.1.0-p1";
+ }
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:43:51.761257868 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:43:51.801257430 +0000
+@@ -0,0 +1 @@
++random_deviate
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:40:40.119363040 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:43:51.801257430 +0000
+@@ -1 +1 @@
+-4.1.0-p1
++4.1.0-p2
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:40:40.115363084 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:43:51.801257430 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p1"
++#define MPFR_VERSION_STRING "4.1.0-p2"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/random_deviate.c mpfr-4.1.0-b/src/random_deviate.c
+--- mpfr-4.1.0-a/src/random_deviate.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/random_deviate.c	2021-02-11 12:43:51.789257562 +0000
+@@ -289,6 +289,7 @@
+   mpfr_random_size_t p = mpfr_get_prec (z); /* Number of bits in result */
+   mpz_t t;
+   int inex;
++  mpfr_exp_t negxe;
+ 
+   if (n == 0)
+     {
+@@ -370,14 +371,22 @@
+   mpz_setbit (t, 0);     /* Set the trailing bit so result is always inexact */
+   if (neg)
+     mpz_neg (t, t);
+-  /* Is -x->e representable as a mpfr_exp_t? */
+-  MPFR_ASSERTN (x->e <= (mpfr_uexp_t)(-1) >> 1);
++  /* Portable version of the negation of x->e, with a check of overflow. */
++  if (MPFR_UNLIKELY (x->e > MPFR_EXP_MAX))
++    {
++      /* Overflow, except when x->e = MPFR_EXP_MAX + 1 = - MPFR_EXP_MIN. */
++      MPFR_ASSERTN (MPFR_EXP_MIN + MPFR_EXP_MAX == -1 &&
++                    x->e == (mpfr_random_size_t) MPFR_EXP_MAX + 1);
++      negxe = MPFR_EXP_MIN;
++    }
++  else
++    negxe = - (mpfr_exp_t) x->e;
+   /*
+    * Let mpfr_set_z_2exp do all the work of rounding to the requested
+    * precision, setting overflow/underflow flags, and returning the right
+    * inexact value.
+    */
+-  inex = mpfr_set_z_2exp (z, t, -x->e, rnd);
++  inex = mpfr_set_z_2exp (z, t, negxe, rnd);
+   mpz_clear (t);
+   return inex;
+ }
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:40:40.119363040 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:43:51.801257430 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p1";
++  return "4.1.0-p2";
+ }
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:46:49.075316772 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:46:49.115316335 +0000
+@@ -0,0 +1 @@
++set_z_2exp-overflow
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:43:51.801257430 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:46:49.115316335 +0000
+@@ -1 +1 @@
+-4.1.0-p2
++4.1.0-p3
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:43:51.801257430 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:46:49.115316335 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p2"
++#define MPFR_VERSION_STRING "4.1.0-p3"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/set_z_exp.c mpfr-4.1.0-b/src/set_z_exp.c
+--- mpfr-4.1.0-a/src/set_z_exp.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/set_z_exp.c	2021-02-11 12:46:49.103316466 +0000
+@@ -28,10 +28,11 @@
+ int
+ mpfr_set_z_2exp (mpfr_ptr f, mpz_srcptr z, mpfr_exp_t e, mpfr_rnd_t rnd_mode)
+ {
+-  mp_size_t fn, zn, dif, en;
++  mp_size_t fn, zn, dif;
+   int k, sign_z, inex;
+   mp_limb_t *fp, *zp;
+-  mpfr_exp_t exp;
++  mpfr_exp_t exp, nmax;
++  mpfr_uexp_t uexp;
+ 
+   sign_z = mpz_sgn (z);
+   if (MPFR_UNLIKELY (sign_z == 0)) /* ignore the exponent for 0 */
+@@ -43,10 +44,15 @@
+   MPFR_ASSERTD (sign_z == MPFR_SIGN_POS || sign_z == MPFR_SIGN_NEG);
+ 
+   zn = ABSIZ(z); /* limb size of z */
+-  /* compute en = floor(e/GMP_NUMB_BITS) */
+-  en = (e >= 0) ? e / GMP_NUMB_BITS : (e + 1) / GMP_NUMB_BITS - 1;
+   MPFR_ASSERTD (zn >= 1);
+-  if (MPFR_UNLIKELY (zn + en > MPFR_EMAX_MAX / GMP_NUMB_BITS + 1))
++  nmax = MPFR_EMAX_MAX / GMP_NUMB_BITS + 1;
++  /* Detect early overflow with zn + en > nmax,
++     where en = floor(e / GMP_NUMB_BITS).
++     This is checked without an integer overflow (even assuming some
++     future version of GMP, where limitations may be removed). */
++  if (MPFR_UNLIKELY (e >= 0 ?
++                     zn > nmax - e / GMP_NUMB_BITS :
++                     zn + (e + 1) / GMP_NUMB_BITS - 1 > nmax))
+     return mpfr_overflow (f, rnd_mode, sign_z);
+   /* because zn + en >= MPFR_EMAX_MAX / GMP_NUMB_BITS + 2
+      implies (zn + en) * GMP_NUMB_BITS >= MPFR_EMAX_MAX + GMP_NUMB_BITS + 1
+@@ -64,8 +70,21 @@
+      and exp = zn * GMP_NUMB_BITS + e - k
+              <= (zn + en) * GMP_NUMB_BITS - k + GMP_NUMB_BITS - 1
+              <= MPFR_EMAX_MAX + 2 * GMP_NUMB_BITS - 1 */
+-  exp = (mpfr_prec_t) zn * GMP_NUMB_BITS + e - k;
++  /* We need to compute exp = zn * GMP_NUMB_BITS + e - k with well-defined
++     operations (no integer overflows / no implementation-defined results).
++     The mathematical result of zn * GMP_NUMB_BITS may be larger than
++     the largest value of mpfr_exp_t while exp could still be less than
++     __gmpfr_emax. Thanks to early overflow detection, we can compute the
++     result in modular arithmetic, using mpfr_uexp_t, and convert it to
++     mpfr_exp_t. */
++  uexp = (mpfr_uexp_t) zn * GMP_NUMB_BITS + (mpfr_uexp_t) e - k;
++
++  /* Convert to signed in a portable way (see doc/README.dev).
++     On most platforms, this can be optimized to identity (no-op). */
++  exp = uexp > MPFR_EXP_MAX ? -1 - (mpfr_exp_t) ~uexp : (mpfr_exp_t) uexp;
++
+   /* The exponent will be exp or exp + 1 (due to rounding) */
++
+   if (MPFR_UNLIKELY (exp > __gmpfr_emax))
+     return mpfr_overflow (f, rnd_mode, sign_z);
+   if (MPFR_UNLIKELY (exp + 1 < __gmpfr_emin))
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:43:51.801257430 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:46:49.115316335 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p2";
++  return "4.1.0-p3";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tset_z_exp.c mpfr-4.1.0-b/tests/tset_z_exp.c
+--- mpfr-4.1.0-a/tests/tset_z_exp.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tset_z_exp.c	2021-02-11 12:46:49.103316466 +0000
+@@ -97,49 +97,149 @@
+    mpfr_get_si is a rather indirect test of a low level routine.  */
+ 
+ static void
+-check (long i, mpfr_rnd_t rnd)
++check (long i, mpfr_rnd_t rnd, int reduced)
+ {
+-  mpfr_t f;
++  mpfr_t f1, f2, f3;
+   mpz_t z;
+-  mpfr_exp_t e;
++  mpfr_exp_t e, old_emin, old_emax;
+   int inex;
++  mpfr_flags_t flags;
++
++  old_emin = mpfr_get_emin ();
++  old_emax = mpfr_get_emax ();
+ 
+   /* using CHAR_BIT * sizeof(long) bits of precision ensures that
+      mpfr_set_z_2exp is exact below */
+-  mpfr_init2 (f, CHAR_BIT * sizeof(long));
++  mpfr_inits2 (CHAR_BIT * sizeof(long), f1, f2, f3, (mpfr_ptr) 0);
+   mpz_init (z);
+   mpz_set_ui (z, i);
+   /* the following loop ensures that no overflow occurs */
+   do
+     e = randexp ();
+   while (e > mpfr_get_emax () - CHAR_BIT * sizeof(long));
+-  inex = mpfr_set_z_2exp (f, z, e, rnd);
+-  if (inex != 0)
++
++  mpfr_clear_flags ();
++  inex = mpfr_set_z_2exp (f1, z, e, rnd);
++  flags = __gmpfr_flags;
++
++  if (inex != 0 || flags != 0 ||
++      (mpfr_div_2si (f2, f1, e, rnd), mpfr_get_si (f2, MPFR_RNDZ) != i))
+     {
+-      printf ("Error in mpfr_set_z_2exp for i=%ld, e=%ld,"
+-              " wrong ternary value\n", i, (long) e);
+-      printf ("expected 0, got %d\n", inex);
++      printf ("Error in mpfr_set_z_2exp for i=%ld e=%" MPFR_EXP_FSPEC
++              "d rnd_mode=%d\n", i, (mpfr_eexp_t) e, rnd);
++      mpfr_set_si_2exp (f2, i, e, MPFR_RNDN);
++      printf ("expected "); mpfr_dump (f2);
++      printf ("with inex = %d and flags =", 0);
++      flags_out (0);
++      printf ("got      "); mpfr_dump (f1);
++      printf ("with inex = %d and flags =", inex);
++      flags_out (flags);
+       exit (1);
+     }
+-  mpfr_div_2si (f, f, e, rnd);
+-  if (mpfr_get_si (f, MPFR_RNDZ) != i)
++
++  if (reduced)
+     {
+-      printf ("Error in mpfr_set_z_2exp for i=%ld e=", i);
+-      if (e < LONG_MIN)
+-        printf ("(<LONG_MIN)");
+-      else if (e > LONG_MAX)
+-        printf ("(>LONG_MAX)");
+-      else
+-        printf ("%ld", (long) e);
+-      printf (" rnd_mode=%d\n", rnd);
+-      printf ("expected %ld\n", i);
+-      printf ("got      "); mpfr_dump (f);
+-      exit (1);
++      mpfr_exp_t ef, emin, emax;
++      int inex2, inex3;
++      mpfr_flags_t flags2, flags3;
++
++      ef = i == 0 ? 0 : mpfr_get_exp (f1);
++      for (emin = ef - 2; emin <= ef + 2; emin++)
++        for (emax = emin; emax <= ef + 2; emax++)
++          {
++            inex3 = mpfr_set (f3, f1, rnd);
++            MPFR_ASSERTN (inex3 == 0);
++            mpfr_set_emin (emin);
++            mpfr_set_emax (emax);
++            mpfr_clear_flags ();
++            inex2 = mpfr_set_z_2exp (f2, z, e, rnd);
++            flags2 = __gmpfr_flags;
++            mpfr_clear_flags ();
++            inex3 = mpfr_check_range (f3, 0, rnd);
++            flags3 = __gmpfr_flags;
++            if (!(mpfr_equal_p (f2, f3) &&
++                  SAME_SIGN (inex2, inex3) &&
++                  flags2 == flags3))
++              {
++                printf ("Error in mpfr_set_z_2exp for i=%ld e=%"
++                        MPFR_EXP_FSPEC "d rnd_mode=%d\nand emin=%"
++                        MPFR_EXP_FSPEC "d emax=%" MPFR_EXP_FSPEC
++                        "d\n", i, (mpfr_eexp_t) e, rnd,
++                        (mpfr_eexp_t) emin, (mpfr_eexp_t) emax);
++                printf ("expected "); mpfr_dump (f3);
++                printf ("with inex = %d and flags =", inex3);
++                flags_out (flags3);
++                printf ("got      "); mpfr_dump (f2);
++                printf ("with inex = %d and flags =", inex2);
++                flags_out (flags2);
++                exit (1);
++              }
++          }
++      mpfr_set_emin (old_emin);
++      mpfr_set_emax (old_emax);
+     }
+-  mpfr_clear (f);
++
++  mpfr_clears (f1, f2, f3, (mpfr_ptr) 0);
+   mpz_clear (z);
+ }
+ 
++static void
++check_huge (void)
++{
++  if (getenv ("MPFR_CHECK_LARGEMEM") != NULL)
++    {
++      mpfr_t x;
++      mpz_t z;
++      long e;
++
++      /* Increase tests_memory_limit to the maximum in order to avoid
++         an obvious failure due to insufficient memory. */
++      tests_memory_limit = (size_t) -1;  /* no memory limit */
++
++      mpfr_init2 (x, 32);
++
++      /* In r14140, with a 32-bit ABI (GCC's -m32):
++         - With UBsan (-fsanitize=undefined -fno-sanitize-recover),
++           this fails with:
++             set_z_2exp.c:71:26: runtime error: signed integer overflow:
++             67108864 * 32 cannot be represented in type 'long int'
++         - With -D_MPFR_EXP_FORMAT=4, this fails with:
++             Expected 0.10001000000000000000000000000000E5
++             Got      0
++      */
++      mpz_init_set_ui (z, 17);
++      e = 0x7ffffff0;
++      mpz_mul_2exp (z, z, e);
++      mpz_add_ui (z, z, 1);
++      mpfr_set_z_2exp (x, z, -e, MPFR_RNDN);
++      if (mpfr_cmp_ui0 (x, 17) != 0)
++        {
++          printf ("Error 1 in check_huge\n");
++          printf ("Expected 0.10001000000000000000000000000000E5\n");
++          printf ("Got      ");
++          mpfr_dump (x);
++          exit (1);
++        }
++      mpz_clear (z);
++
++      mpz_init_set_ui (z, 17);
++      mpz_mul_2exp (z, z, 0xffffffb0);
++      mpz_add_ui (z, z, 1);
++      mpfr_set_z_2exp (x, z, -1, MPFR_RNDN);
++      if (! MPFR_IS_INF (x) || MPFR_IS_NEG (x))
++        {
++          printf ("Error 2 in check_huge\n");
++          printf ("Expected @Inf@\n");
++          printf ("Got      ");
++          mpfr_dump (x);
++          exit (1);
++        }
++      mpz_clear (z);
++
++      mpfr_clear (x);
++    }
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -147,11 +247,13 @@
+ 
+   tests_start_mpfr ();
+ 
+-  check (0, MPFR_RNDN);
++  check (0, MPFR_RNDN, 0);
+   for (j = 0; j < 200000; j++)
+-    check (randlimb () & LONG_MAX, RND_RAND ());
++    check (randlimb () & LONG_MAX, RND_RAND (), j < 200);
+   check0 ();
+ 
++  check_huge ();
++
+   tests_end_mpfr ();
+ 
+   return 0;
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:48:27.322243271 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:48:27.370242746 +0000
+@@ -0,0 +1 @@
++prototypes
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:46:49.115316335 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:48:27.370242746 +0000
+@@ -1 +1 @@
+-4.1.0-p3
++4.1.0-p4
+diff -Naurd mpfr-4.1.0-a/src/atan.c mpfr-4.1.0-b/src/atan.c
+--- mpfr-4.1.0-a/src/atan.c	2020-04-22 15:27:07.000000000 +0000
++++ mpfr-4.1.0-b/src/atan.c	2021-02-11 12:48:27.354242922 +0000
+@@ -56,7 +56,7 @@
+   };
+ 
+ static void
+-set_table (mpfr_t y, const mp_limb_t x[3])
++set_table (mpfr_ptr y, const mp_limb_t x[3])
+ {
+   mpfr_prec_t p = MPFR_PREC(y);
+   mp_size_t n = MPFR_PREC2LIMBS(p);
+diff -Naurd mpfr-4.1.0-a/src/const_euler.c mpfr-4.1.0-b/src/const_euler.c
+--- mpfr-4.1.0-a/src/const_euler.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/const_euler.c	2021-02-11 12:48:27.354242922 +0000
+@@ -181,7 +181,7 @@
+ }
+ 
+ int
+-mpfr_const_euler_internal (mpfr_t x, mpfr_rnd_t rnd)
++mpfr_const_euler_internal (mpfr_ptr x, mpfr_rnd_t rnd)
+ {
+   mpfr_const_euler_bs_t sum;
+   mpz_t t, u, v;
+diff -Naurd mpfr-4.1.0-a/src/eint.c mpfr-4.1.0-b/src/eint.c
+--- mpfr-4.1.0-a/src/eint.c	2020-03-09 15:31:45.000000000 +0000
++++ mpfr-4.1.0-b/src/eint.c	2021-02-11 12:48:27.354242922 +0000
+@@ -36,7 +36,7 @@
+    Return PREC(y) when the truncated series does not converge.
+ */
+ static mpfr_exp_t
+-mpfr_eint_aux (mpfr_t y, mpfr_srcptr x)
++mpfr_eint_aux (mpfr_ptr y, mpfr_srcptr x)
+ {
+   mpfr_t eps; /* dynamic (absolute) error bound on t */
+   mpfr_t erru, errs;
+diff -Naurd mpfr-4.1.0-a/src/erandom.c mpfr-4.1.0-b/src/erandom.c
+--- mpfr-4.1.0-a/src/erandom.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/erandom.c	2021-02-11 12:48:27.354242922 +0000
+@@ -80,7 +80,7 @@
+ 
+ /* return an exponential random deviate with mean 1 as a MPFR  */
+ int
+-mpfr_erandom (mpfr_t z, gmp_randstate_t r, mpfr_rnd_t rnd)
++mpfr_erandom (mpfr_ptr z, gmp_randstate_t r, mpfr_rnd_t rnd)
+ {
+   mpfr_random_deviate_t x, p, q;
+   int inex;
+diff -Naurd mpfr-4.1.0-a/src/fpif.c mpfr-4.1.0-b/src/fpif.c
+--- mpfr-4.1.0-a/src/fpif.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/fpif.c	2021-02-11 12:48:27.354242922 +0000
+@@ -291,7 +291,8 @@
+  *   until one has integer types larger than 128 bits).
+  */
+ static unsigned char*
+-mpfr_fpif_store_exponent (unsigned char *buffer, size_t *buffer_size, mpfr_t x)
++mpfr_fpif_store_exponent (unsigned char *buffer, size_t *buffer_size,
++                          mpfr_ptr x)
+ {
+   unsigned char *result;
+   mpfr_uexp_t uexp;
+@@ -372,7 +373,7 @@
+  *   than 128 bits).
+  */
+ static int
+-mpfr_fpif_read_exponent_from_file (mpfr_t x, FILE * fh)
++mpfr_fpif_read_exponent_from_file (mpfr_ptr x, FILE * fh)
+ {
+   mpfr_exp_t exponent;
+   mpfr_uexp_t uexp;
+@@ -456,7 +457,7 @@
+  *        format
+  */
+ static unsigned char*
+-mpfr_fpif_store_limbs (unsigned char *buffer, size_t *buffer_size, mpfr_t x)
++mpfr_fpif_store_limbs (unsigned char *buffer, size_t *buffer_size, mpfr_ptr x)
+ {
+   unsigned char *result;
+   mpfr_prec_t precision;
+@@ -492,7 +493,7 @@
+  * Assume buffer is not NULL.
+  */
+ static void
+-mpfr_fpif_read_limbs (mpfr_t x, unsigned char *buffer, size_t nb_byte)
++mpfr_fpif_read_limbs (mpfr_ptr x, unsigned char *buffer, size_t nb_byte)
+ {
+   size_t mp_bytes_per_limb;
+   size_t nb_partial_byte;
+@@ -522,7 +523,7 @@
+  * return 0 if successful
+  */
+ int
+-mpfr_fpif_export (FILE *fh, mpfr_t x)
++mpfr_fpif_export (FILE *fh, mpfr_ptr x)
+ {
+   int status;
+   unsigned char *buf;
+@@ -582,7 +583,7 @@
+  * Return 0 if the import was successful.
+  */
+ int
+-mpfr_fpif_import (mpfr_t x, FILE *fh)
++mpfr_fpif_import (mpfr_ptr x, FILE *fh)
+ {
+   int status;
+   mpfr_prec_t precision;
+diff -Naurd mpfr-4.1.0-a/src/li2.c mpfr-4.1.0-b/src/li2.c
+--- mpfr-4.1.0-a/src/li2.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/li2.c	2021-02-11 12:48:27.354242922 +0000
+@@ -31,7 +31,7 @@
+    for determinating the relative error.
+ */
+ static int
+-li2_series (mpfr_t sum, mpfr_srcptr z, mpfr_rnd_t rnd_mode)
++li2_series (mpfr_ptr sum, mpfr_srcptr z, mpfr_rnd_t rnd_mode)
+ {
+   int i;
+   mpfr_t s, u, v, w;
+diff -Naurd mpfr-4.1.0-a/src/lngamma.c mpfr-4.1.0-b/src/lngamma.c
+--- mpfr-4.1.0-a/src/lngamma.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/lngamma.c	2021-02-11 12:48:27.354242922 +0000
+@@ -31,7 +31,7 @@
+    precision should be >= 4.
+ */
+ static void
+-mpfr_gamma_alpha (mpfr_t s, mpfr_prec_t p)
++mpfr_gamma_alpha (mpfr_ptr s, mpfr_prec_t p)
+ {
+   MPFR_LOG_FUNC
+     (("p=%Pu", p),
+diff -Naurd mpfr-4.1.0-a/src/mpfr-impl.h mpfr-4.1.0-b/src/mpfr-impl.h
+--- mpfr-4.1.0-a/src/mpfr-impl.h	2020-06-10 21:50:12.000000000 +0000
++++ mpfr-4.1.0-b/src/mpfr-impl.h	2021-02-11 12:48:27.354242922 +0000
+@@ -2474,7 +2474,8 @@
+ __MPFR_DECLSPEC mpz_srcptr mpfr_bernoulli_cache (unsigned long);
+ __MPFR_DECLSPEC void mpfr_bernoulli_freecache (void);
+ 
+-__MPFR_DECLSPEC int mpfr_sincos_fast (mpfr_t, mpfr_t, mpfr_srcptr, mpfr_rnd_t);
++__MPFR_DECLSPEC int mpfr_sincos_fast (mpfr_ptr, mpfr_ptr, mpfr_srcptr,
++                                      mpfr_rnd_t);
+ 
+ __MPFR_DECLSPEC double mpfr_scale2 (double, int);
+ 
+@@ -2485,7 +2486,7 @@
+                                                    mpfr_prec_t);
+ 
+ __MPFR_DECLSPEC void mpfr_mpz_init (mpz_ptr);
+-__MPFR_DECLSPEC void mpfr_mpz_init2 (mpz_t, mp_bitcnt_t);
++__MPFR_DECLSPEC void mpfr_mpz_init2 (mpz_ptr, mp_bitcnt_t);
+ __MPFR_DECLSPEC void mpfr_mpz_clear (mpz_ptr);
+ 
+ __MPFR_DECLSPEC int mpfr_odd_p (mpfr_srcptr);
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:46:49.115316335 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:48:27.366242791 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p3"
++#define MPFR_VERSION_STRING "4.1.0-p4"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+@@ -781,8 +781,8 @@
+ __MPFR_DECLSPEC int mpfr_strtofr (mpfr_ptr, const char *, char **, int,
+                                   mpfr_rnd_t);
+ 
+-__MPFR_DECLSPEC void mpfr_round_nearest_away_begin (mpfr_t);
+-__MPFR_DECLSPEC int mpfr_round_nearest_away_end (mpfr_t, int);
++__MPFR_DECLSPEC void mpfr_round_nearest_away_begin (mpfr_ptr);
++__MPFR_DECLSPEC int mpfr_round_nearest_away_end (mpfr_ptr, int);
+ 
+ __MPFR_DECLSPEC size_t mpfr_custom_get_size (mpfr_prec_t);
+ __MPFR_DECLSPEC void mpfr_custom_init (void *, mpfr_prec_t);
+@@ -1080,10 +1080,12 @@
+ #define mpfr_set_uj_2exp __gmpfr_set_uj_2exp
+ #define mpfr_get_sj __gmpfr_mpfr_get_sj
+ #define mpfr_get_uj __gmpfr_mpfr_get_uj
+-__MPFR_DECLSPEC int mpfr_set_sj (mpfr_t, intmax_t, mpfr_rnd_t);
+-__MPFR_DECLSPEC int mpfr_set_sj_2exp (mpfr_t, intmax_t, intmax_t, mpfr_rnd_t);
+-__MPFR_DECLSPEC int mpfr_set_uj (mpfr_t, uintmax_t, mpfr_rnd_t);
+-__MPFR_DECLSPEC int mpfr_set_uj_2exp (mpfr_t, uintmax_t, intmax_t, mpfr_rnd_t);
++__MPFR_DECLSPEC int mpfr_set_sj (mpfr_ptr, intmax_t, mpfr_rnd_t);
++__MPFR_DECLSPEC int mpfr_set_sj_2exp (mpfr_ptr, intmax_t, intmax_t,
++                                      mpfr_rnd_t);
++__MPFR_DECLSPEC int mpfr_set_uj (mpfr_ptr, uintmax_t, mpfr_rnd_t);
++__MPFR_DECLSPEC int mpfr_set_uj_2exp (mpfr_ptr, uintmax_t, intmax_t,
++                                      mpfr_rnd_t);
+ __MPFR_DECLSPEC intmax_t mpfr_get_sj (mpfr_srcptr, mpfr_rnd_t);
+ __MPFR_DECLSPEC uintmax_t mpfr_get_uj (mpfr_srcptr, mpfr_rnd_t);
+ 
+diff -Naurd mpfr-4.1.0-a/src/nrandom.c mpfr-4.1.0-b/src/nrandom.c
+--- mpfr-4.1.0-a/src/nrandom.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/nrandom.c	2021-02-11 12:48:27.354242922 +0000
+@@ -155,7 +155,7 @@
+ 
+ /* return a normal random deviate with mean 0 and variance 1 as a MPFR  */
+ int
+-mpfr_nrandom (mpfr_t z, gmp_randstate_t r, mpfr_rnd_t rnd)
++mpfr_nrandom (mpfr_ptr z, gmp_randstate_t r, mpfr_rnd_t rnd)
+ {
+   mpfr_random_deviate_t x, p, q;
+   int inex;
+diff -Naurd mpfr-4.1.0-a/src/pool.c mpfr-4.1.0-b/src/pool.c
+--- mpfr-4.1.0-a/src/pool.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/pool.c	2021-02-11 12:48:27.354242922 +0000
+@@ -35,7 +35,7 @@
+ static MPFR_THREAD_ATTR __mpz_struct mpz_tab[MPFR_POOL_NENTRIES];
+ 
+ MPFR_HOT_FUNCTION_ATTR void
+-mpfr_mpz_init (mpz_t z)
++mpfr_mpz_init (mpz_ptr z)
+ {
+   if (MPFR_LIKELY (n_alloc > 0))
+     {
+@@ -54,7 +54,7 @@
+ }
+ 
+ MPFR_HOT_FUNCTION_ATTR void
+-mpfr_mpz_init2 (mpz_t z, mp_bitcnt_t n)
++mpfr_mpz_init2 (mpz_ptr z, mp_bitcnt_t n)
+ {
+   /* The condition on n is used below as the argument n will be ignored if
+      the mpz_t is obtained from the MPFR stack of previously used mpz_t.
+@@ -82,7 +82,7 @@
+ 
+ 
+ MPFR_HOT_FUNCTION_ATTR void
+-mpfr_mpz_clear (mpz_t z)
++mpfr_mpz_clear (mpz_ptr z)
+ {
+   /* We only put objects with at most MPFR_POOL_MAX_SIZE in the mpz_t pool,
+      to avoid it takes too much memory (and anyway the speedup is mainly
+diff -Naurd mpfr-4.1.0-a/src/random_deviate.c mpfr-4.1.0-b/src/random_deviate.c
+--- mpfr-4.1.0-a/src/random_deviate.c	2021-02-11 12:43:51.789257562 +0000
++++ mpfr-4.1.0-b/src/random_deviate.c	2021-02-11 12:48:27.354242922 +0000
+@@ -64,7 +64,7 @@
+ 
+ /* allocate and set to (0,1) */
+ void
+-mpfr_random_deviate_init (mpfr_random_deviate_t x)
++mpfr_random_deviate_init (mpfr_random_deviate_ptr x)
+ {
+   mpz_init (x->f);
+   x->e = 0;
+@@ -72,21 +72,22 @@
+ 
+ /* reset to (0,1) */
+ void
+-mpfr_random_deviate_reset (mpfr_random_deviate_t x)
++mpfr_random_deviate_reset (mpfr_random_deviate_ptr x)
+ {
+   x->e = 0;
+ }
+ 
+ /* deallocate */
+ void
+-mpfr_random_deviate_clear (mpfr_random_deviate_t x)
++mpfr_random_deviate_clear (mpfr_random_deviate_ptr x)
+ {
+   mpz_clear (x->f);
+ }
+ 
+ /* swap two random deviates */
+ void
+-mpfr_random_deviate_swap (mpfr_random_deviate_t x, mpfr_random_deviate_t y)
++mpfr_random_deviate_swap (mpfr_random_deviate_ptr x,
++                          mpfr_random_deviate_ptr y)
+ {
+   mpfr_random_size_t s;
+   unsigned long t;
+@@ -107,7 +108,7 @@
+ 
+ /* ensure x has at least k bits */
+ static void
+-random_deviate_generate (mpfr_random_deviate_t x, mpfr_random_size_t k,
++random_deviate_generate (mpfr_random_deviate_ptr x, mpfr_random_size_t k,
+                          gmp_randstate_t r, mpz_t t)
+ {
+   /* Various compile time checks on mpfr_random_deviate_t */
+@@ -223,7 +224,7 @@
+ 
+ /* return position of leading bit, counting from 1 */
+ static mpfr_random_size_t
+-random_deviate_leading_bit (mpfr_random_deviate_t x, gmp_randstate_t r)
++random_deviate_leading_bit (mpfr_random_deviate_ptr x, gmp_randstate_t r)
+ {
+   mpfr_random_size_t l;
+   random_deviate_generate (x, W, r, 0);
+@@ -243,7 +244,7 @@
+ 
+ /* return kth bit of fraction, representing 2^-k */
+ int
+-mpfr_random_deviate_tstbit (mpfr_random_deviate_t x, mpfr_random_size_t k,
++mpfr_random_deviate_tstbit (mpfr_random_deviate_ptr x, mpfr_random_size_t k,
+                             gmp_randstate_t r)
+ {
+   if (k == 0)
+@@ -256,7 +257,8 @@
+ 
+ /* compare two random deviates, x < y */
+ int
+-mpfr_random_deviate_less (mpfr_random_deviate_t x, mpfr_random_deviate_t y,
++mpfr_random_deviate_less (mpfr_random_deviate_ptr x,
++                          mpfr_random_deviate_ptr y,
+                           gmp_randstate_t r)
+ {
+   mpfr_random_size_t k = 1;
+@@ -280,7 +282,7 @@
+ /* set mpfr_t z = (neg ? -1 : 1) * (n + x) */
+ int
+ mpfr_random_deviate_value (int neg, unsigned long n,
+-                           mpfr_random_deviate_t x, mpfr_t z,
++                           mpfr_random_deviate_ptr x, mpfr_ptr z,
+                            gmp_randstate_t r, mpfr_rnd_t rnd)
+ {
+   /* r is used to add as many bits as necessary to match the precision of z */
+diff -Naurd mpfr-4.1.0-a/src/random_deviate.h mpfr-4.1.0-b/src/random_deviate.h
+--- mpfr-4.1.0-a/src/random_deviate.h	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/random_deviate.h	2021-02-11 12:48:27.354242922 +0000
+@@ -76,7 +76,7 @@
+ /* set mpfr_t z = (neg ? -1 : 1) * (n + x) */
+ __MPFR_DECLSPEC int
+   mpfr_random_deviate_value (int, unsigned long,
+-                             mpfr_random_deviate_ptr, mpfr_t,
++                             mpfr_random_deviate_ptr, mpfr_ptr,
+                              gmp_randstate_t, mpfr_rnd_t);
+ 
+ #if defined(__cplusplus)
+diff -Naurd mpfr-4.1.0-a/src/rndna.c mpfr-4.1.0-b/src/rndna.c
+--- mpfr-4.1.0-a/src/rndna.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/rndna.c	2021-02-11 12:48:27.354242922 +0000
+@@ -61,7 +61,7 @@
+    and prepares rop to give it one more bit of precision
+    and to save its old value within it. */
+ void
+-mpfr_round_nearest_away_begin (mpfr_t rop)
++mpfr_round_nearest_away_begin (mpfr_ptr rop)
+ {
+   mpfr_t tmp;
+   mp_size_t xsize;
+@@ -129,7 +129,7 @@
+    copying it back the result of the applied function
+    and performing additional roundings. */
+ int
+-mpfr_round_nearest_away_end (mpfr_t rop, int inex)
++mpfr_round_nearest_away_end (mpfr_ptr rop, int inex)
+ {
+   mpfr_t    tmp;
+   mp_size_t xsize;
+diff -Naurd mpfr-4.1.0-a/src/set_sj.c mpfr-4.1.0-b/src/set_sj.c
+--- mpfr-4.1.0-a/src/set_sj.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/src/set_sj.c	2021-02-11 12:48:27.354242922 +0000
+@@ -26,13 +26,13 @@
+ #ifdef _MPFR_H_HAVE_INTMAX_T
+ 
+ int
+-mpfr_set_sj (mpfr_t x, intmax_t j, mpfr_rnd_t rnd)
++mpfr_set_sj (mpfr_ptr x, intmax_t j, mpfr_rnd_t rnd)
+ {
+   return mpfr_set_sj_2exp (x, j, 0, rnd);
+ }
+ 
+ int
+-mpfr_set_sj_2exp (mpfr_t x, intmax_t j, intmax_t e, mpfr_rnd_t rnd)
++mpfr_set_sj_2exp (mpfr_ptr x, intmax_t j, intmax_t e, mpfr_rnd_t rnd)
+ {
+   if (j >= 0)
+     return mpfr_set_uj_2exp (x, j, e, rnd);
+diff -Naurd mpfr-4.1.0-a/src/set_str.c mpfr-4.1.0-b/src/set_str.c
+--- mpfr-4.1.0-a/src/set_str.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/set_str.c	2021-02-11 12:48:27.354242922 +0000
+@@ -23,7 +23,7 @@
+ #include "mpfr-impl.h"
+ 
+ int
+-mpfr_set_str (mpfr_t x, const char *str, int base, mpfr_rnd_t rnd)
++mpfr_set_str (mpfr_ptr x, const char *str, int base, mpfr_rnd_t rnd)
+ {
+   char *p;
+ 
+diff -Naurd mpfr-4.1.0-a/src/set_uj.c mpfr-4.1.0-b/src/set_uj.c
+--- mpfr-4.1.0-a/src/set_uj.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/src/set_uj.c	2021-02-11 12:48:27.354242922 +0000
+@@ -29,13 +29,13 @@
+ #define uintmaxpml (sizeof(uintmax_t) / sizeof(mp_limb_t))
+ 
+ int
+-mpfr_set_uj (mpfr_t x, uintmax_t j, mpfr_rnd_t rnd)
++mpfr_set_uj (mpfr_ptr x, uintmax_t j, mpfr_rnd_t rnd)
+ {
+   return mpfr_set_uj_2exp (x, j, 0, rnd);
+ }
+ 
+ int
+-mpfr_set_uj_2exp (mpfr_t x, uintmax_t j, intmax_t e, mpfr_rnd_t rnd)
++mpfr_set_uj_2exp (mpfr_ptr x, uintmax_t j, intmax_t e, mpfr_rnd_t rnd)
+ {
+   int cnt, inex;
+   mp_size_t i, k;
+diff -Naurd mpfr-4.1.0-a/src/sin_cos.c mpfr-4.1.0-b/src/sin_cos.c
+--- mpfr-4.1.0-a/src/sin_cos.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/sin_cos.c	2021-02-11 12:48:27.354242922 +0000
+@@ -463,7 +463,7 @@
+    Return err such that the relative error is bounded by 2^err ulps.
+ */
+ static int
+-sincos_aux (mpfr_t s, mpfr_t c, mpfr_srcptr x, mpfr_rnd_t rnd_mode)
++sincos_aux (mpfr_ptr s, mpfr_ptr c, mpfr_srcptr x, mpfr_rnd_t rnd_mode)
+ {
+   mpfr_prec_t prec_s, sh;
+   mpz_t Q, S, C, Q2, S2, C2, y;
+@@ -577,7 +577,7 @@
+    Assumes s differs from c.
+  */
+ int
+-mpfr_sincos_fast (mpfr_t s, mpfr_t c, mpfr_srcptr x, mpfr_rnd_t rnd)
++mpfr_sincos_fast (mpfr_ptr s, mpfr_ptr c, mpfr_srcptr x, mpfr_rnd_t rnd)
+ {
+   int inexs, inexc;
+   mpfr_t x_red, ts, tc;
+diff -Naurd mpfr-4.1.0-a/src/strtofr.c mpfr-4.1.0-b/src/strtofr.c
+--- mpfr-4.1.0-a/src/strtofr.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/strtofr.c	2021-02-11 12:48:27.354242922 +0000
+@@ -226,7 +226,7 @@
+    BUT if it returns 0 (NAN or INF), the ternary value is also '0'
+    (ie NAN and INF are exact) */
+ static int
+-parse_string (mpfr_t x, struct parsed_string *pstr,
++parse_string (mpfr_ptr x, struct parsed_string *pstr,
+               const char **string, int base)
+ {
+   const char *str = *string;
+@@ -451,7 +451,7 @@
+    and the precision of x.
+    Returns the ternary value. */
+ static int
+-parsed_string_to_mpfr (mpfr_t x, struct parsed_string *pstr, mpfr_rnd_t rnd)
++parsed_string_to_mpfr (mpfr_ptr x, struct parsed_string *pstr, mpfr_rnd_t rnd)
+ {
+   mpfr_prec_t precx, prec, ysize_bits, pstr_size;
+   mpfr_exp_t exp;
+@@ -934,7 +934,7 @@
+ }
+ 
+ int
+-mpfr_strtofr (mpfr_t x, const char *string, char **end, int base,
++mpfr_strtofr (mpfr_ptr x, const char *string, char **end, int base,
+               mpfr_rnd_t rnd)
+ {
+   int res;
+diff -Naurd mpfr-4.1.0-a/src/vasprintf.c mpfr-4.1.0-b/src/vasprintf.c
+--- mpfr-4.1.0-a/src/vasprintf.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/src/vasprintf.c	2021-02-11 12:48:27.354242922 +0000
+@@ -963,7 +963,7 @@
+ #define NDIGITS 8
+ 
+ MPFR_RETURNS_NONNULL static char *
+-mpfr_get_str_wrapper (mpfr_exp_t *exp, int base, size_t n, const mpfr_t op,
++mpfr_get_str_wrapper (mpfr_exp_t *exp, int base, size_t n, mpfr_srcptr op,
+                       const struct printf_spec spec)
+ {
+   size_t ndigits;
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:46:49.115316335 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:48:27.370242746 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p3";
++  return "4.1.0-p4";
+ }
+diff -Naurd mpfr-4.1.0-a/src/zeta.c mpfr-4.1.0-b/src/zeta.c
+--- mpfr-4.1.0-a/src/zeta.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/src/zeta.c	2021-02-11 12:48:27.354242922 +0000
+@@ -35,7 +35,7 @@
+    sum(tc[i]*product((s+2j)*(s+2j-1)/n^2,j=1..i-1), i=1..p)*s*n^(-s-1)
+ */
+ static void
+-mpfr_zeta_part_b (mpfr_t b, mpfr_srcptr s, int n, int p, mpfr_t *tc)
++mpfr_zeta_part_b (mpfr_ptr b, mpfr_srcptr s, int n, int p, mpfr_t *tc)
+ {
+   mpfr_t s1, d, u;
+   unsigned long n2;
+@@ -130,7 +130,7 @@
+           n - an integer
+    Output: sum - a floating-point number approximating sum(1/i^s, i=1..n-1) */
+ static void
+-mpfr_zeta_part_a (mpfr_t sum, mpfr_srcptr s, int n)
++mpfr_zeta_part_a (mpfr_ptr sum, mpfr_srcptr s, int n)
+ {
+   mpfr_t u, s1;
+   int i;
+@@ -158,7 +158,7 @@
+    Output: z - Zeta(s) rounded to the precision of z with direction rnd_mode
+ */
+ static int
+-mpfr_zeta_pos (mpfr_t z, mpfr_srcptr s, mpfr_rnd_t rnd_mode)
++mpfr_zeta_pos (mpfr_ptr z, mpfr_srcptr s, mpfr_rnd_t rnd_mode)
+ {
+   mpfr_t b, c, z_pre, f, s1;
+   double beta, sd, dnep;
+@@ -356,8 +356,8 @@
+    At input, p is Pi rounded down.
+    The comments in the code are for rnd = RNDD. */
+ static void
+-mpfr_reflection_overflow (mpfr_t z, mpfr_t s1, const mpfr_t s, mpfr_t y,
+-                          mpfr_t p, mpfr_rnd_t rnd)
++mpfr_reflection_overflow (mpfr_ptr z, mpfr_ptr s1, mpfr_srcptr s, mpfr_ptr y,
++                          mpfr_ptr p, mpfr_rnd_t rnd)
+ {
+   mpz_t sint;
+ 
+@@ -432,7 +432,7 @@
+ }
+ 
+ int
+-mpfr_zeta (mpfr_t z, mpfr_srcptr s, mpfr_rnd_t rnd_mode)
++mpfr_zeta (mpfr_ptr z, mpfr_srcptr s, mpfr_rnd_t rnd_mode)
+ {
+   mpfr_t z_pre, s1, y, p;
+   long add;
+diff -Naurd mpfr-4.1.0-a/tests/tcmp2.c mpfr-4.1.0-b/tests/tcmp2.c
+--- mpfr-4.1.0-a/tests/tcmp2.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tcmp2.c	2021-02-11 12:48:27.350242965 +0000
+@@ -24,7 +24,7 @@
+ 
+ /* set bit n of x to b, where bit 0 is the most significant one */
+ static void
+-set_bit (mpfr_t x, unsigned int n, int b)
++set_bit (mpfr_ptr x, unsigned int n, int b)
+ {
+   unsigned l;
+   mp_size_t xn;
+diff -Naurd mpfr-4.1.0-a/tests/tdiv.c mpfr-4.1.0-b/tests/tdiv.c
+--- mpfr-4.1.0-a/tests/tdiv.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tdiv.c	2021-02-11 12:48:27.350242965 +0000
+@@ -369,7 +369,7 @@
+ /* given y = o(x/u), x, u, find the inexact flag by
+    multiplying y by u */
+ static int
+-get_inexact (mpfr_t y, mpfr_t x, mpfr_t u)
++get_inexact (mpfr_ptr y, mpfr_ptr x, mpfr_ptr u)
+ {
+   mpfr_t xx;
+   int inex;
+diff -Naurd mpfr-4.1.0-a/tests/teq.c mpfr-4.1.0-b/tests/teq.c
+--- mpfr-4.1.0-a/tests/teq.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/teq.c	2021-02-11 12:48:27.350242965 +0000
+@@ -23,7 +23,7 @@
+ #include "mpfr-test.h"
+ 
+ static void
+-teq (mpfr_t x)
++teq (mpfr_ptr x)
+ {
+   mpfr_t y;
+   unsigned long k, px, mx;
+diff -Naurd mpfr-4.1.0-a/tests/terandom_chisq.c mpfr-4.1.0-b/tests/terandom_chisq.c
+--- mpfr-4.1.0-a/tests/terandom_chisq.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/terandom_chisq.c	2021-02-11 12:48:27.350242965 +0000
+@@ -26,7 +26,7 @@
+  * exponential distribution.  We only take differences of this function so the
+  * offset doesn't matter; here Phi(0) = 0. */
+ static void
+-exponential_cumulative (mpfr_t z, mpfr_t x, mpfr_rnd_t rnd)
++exponential_cumulative (mpfr_ptr z, mpfr_ptr x, mpfr_rnd_t rnd)
+ {
+   mpfr_neg (z, x, rnd);
+   mpfr_expm1 (z, z, rnd);
+@@ -43,7 +43,7 @@
+  * TAOCP, Vol 2, 3.3.1, Table 1.  It more accurate than the similar formula,
+  * DLMF 8.11.10. */
+ static void
+-chisq_prob (mpfr_t q, long nu, mpfr_t chisqp)
++chisq_prob (mpfr_ptr q, long nu, mpfr_ptr chisqp)
+ {
+   mpfr_t t;
+   mpfr_rnd_t rnd;
+@@ -170,7 +170,7 @@
+  * this function.  low precision means prec = 2, 3, or 4.  High values of
+  * precision will result in integer overflow. */
+ static long
+-sequential (mpfr_t x)
++sequential (mpfr_ptr x)
+ {
+   long expt, prec;
+ 
+diff -Naurd mpfr-4.1.0-a/tests/tfmma.c mpfr-4.1.0-b/tests/tfmma.c
+--- mpfr-4.1.0-a/tests/tfmma.c	2020-03-24 13:47:38.000000000 +0000
++++ mpfr-4.1.0-b/tests/tfmma.c	2021-02-11 12:48:27.350242965 +0000
+@@ -24,7 +24,7 @@
+ 
+ /* check both mpfr_fmma and mpfr_fmms */
+ static void
+-random_test (mpfr_t a, mpfr_t b, mpfr_t c, mpfr_t d, mpfr_rnd_t rnd)
++random_test (mpfr_ptr a, mpfr_ptr b, mpfr_ptr c, mpfr_ptr d, mpfr_rnd_t rnd)
+ {
+   mpfr_t ref, res, ab, cd;
+   int inex_ref, inex_res;
+diff -Naurd mpfr-4.1.0-a/tests/tfmod.c mpfr-4.1.0-b/tests/tfmod.c
+--- mpfr-4.1.0-a/tests/tfmod.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tfmod.c	2021-02-11 12:48:27.350242965 +0000
+@@ -62,8 +62,8 @@
+ }
+ 
+ static void
+-test_failed (mpfr_t erem, mpfr_t grem, int eret, int gret, mpfr_t x, mpfr_t y,
+-             mpfr_rnd_t rnd)
++test_failed (mpfr_ptr erem, mpfr_ptr grem, int eret, int gret,
++             mpfr_ptr x, mpfr_ptr y, mpfr_rnd_t rnd)
+ {
+   printf ("error: mpfr_fmod (r, x, y, rnd)\n  x = ");
+   mpfr_out_str (stdout, 10, 0, x, MPFR_RNDD);
+@@ -83,7 +83,7 @@
+ }
+ 
+ static void
+-check (mpfr_t r0, mpfr_t x, mpfr_t y, mpfr_rnd_t rnd)
++check (mpfr_ptr r0, mpfr_ptr x, mpfr_ptr y, mpfr_rnd_t rnd)
+ {
+   int inex0, inex1;
+   mpfr_t r1;
+diff -Naurd mpfr-4.1.0-a/tests/tfprintf.c mpfr-4.1.0-b/tests/tfprintf.c
+--- mpfr-4.1.0-a/tests/tfprintf.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/tests/tfprintf.c	2021-02-11 12:48:27.350242965 +0000
+@@ -65,7 +65,7 @@
+ const int prec_max_printf = 5000;
+ 
+ static void
+-check (FILE *fout, const char *fmt, mpfr_t x)
++check (FILE *fout, const char *fmt, mpfr_ptr x)
+ {
+   if (mpfr_fprintf (fout, fmt, x) == -1)
+     {
+diff -Naurd mpfr-4.1.0-a/tests/tgamma.c mpfr-4.1.0-b/tests/tgamma.c
+--- mpfr-4.1.0-a/tests/tgamma.c	2020-06-01 00:15:37.000000000 +0000
++++ mpfr-4.1.0-b/tests/tgamma.c	2021-02-11 12:48:27.350242965 +0000
+@@ -890,7 +890,7 @@
+    computing with a working precision p2. Assume that x is not an
+    integer <= 2. */
+ static void
+-exp_lgamma (mpfr_t x, mpfr_prec_t p1, mpfr_prec_t p2)
++exp_lgamma (mpfr_ptr x, mpfr_prec_t p1, mpfr_prec_t p2)
+ {
+   mpfr_t yd, yu, zd, zu;
+   int inexd, inexu, sign;
+diff -Naurd mpfr-4.1.0-a/tests/tnrandom_chisq.c mpfr-4.1.0-b/tests/tnrandom_chisq.c
+--- mpfr-4.1.0-a/tests/tnrandom_chisq.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tnrandom_chisq.c	2021-02-11 12:48:27.350242965 +0000
+@@ -26,7 +26,7 @@
+  * for the normal distribution.  We only take differences of this function so
+  * the offset doesn't matter; here Phi(0) = 0. */
+ static void
+-normal_cumulative (mpfr_t z, mpfr_t x, mpfr_rnd_t rnd)
++normal_cumulative (mpfr_ptr z, mpfr_ptr x, mpfr_rnd_t rnd)
+ {
+   mpfr_sqrt_ui (z, 2, rnd);
+   mpfr_div (z, x, z, rnd);
+@@ -44,7 +44,7 @@
+  * TAOCP, Vol 2, 3.3.1, Table 1.  It more accurate than the similar formula,
+  * DLMF 8.11.10. */
+ static void
+-chisq_prob (mpfr_t q, long nu, mpfr_t chisqp)
++chisq_prob (mpfr_ptr q, long nu, mpfr_ptr chisqp)
+ {
+   mpfr_t t;
+   mpfr_rnd_t rnd;
+@@ -166,7 +166,7 @@
+  * this function.  low precision means prec = 2, 3, or 4.  High values of
+  * precision will result in integer overflow. */
+ static long
+-sequential (mpfr_t x)
++sequential (mpfr_ptr x)
+ {
+   long expt, prec;
+ 
+diff -Naurd mpfr-4.1.0-a/tests/tprintf.c mpfr-4.1.0-b/tests/tprintf.c
+--- mpfr-4.1.0-a/tests/tprintf.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/tests/tprintf.c	2021-02-11 12:48:27.350242965 +0000
+@@ -74,7 +74,7 @@
+ int stdout_redirect;
+ 
+ static void
+-check (const char *fmt, mpfr_t x)
++check (const char *fmt, mpfr_ptr x)
+ {
+   if (mpfr_printf (fmt, x) == -1)
+     {
+diff -Naurd mpfr-4.1.0-a/tests/trint.c mpfr-4.1.0-b/tests/trint.c
+--- mpfr-4.1.0-a/tests/trint.c	2020-02-12 13:04:50.000000000 +0000
++++ mpfr-4.1.0-b/tests/trint.c	2021-02-11 12:48:27.350242965 +0000
+@@ -367,7 +367,7 @@
+ #endif
+ 
+ static void
+-err (const char *str, mp_size_t s, mpfr_t x, mpfr_t y, mpfr_prec_t p,
++err (const char *str, mp_size_t s, mpfr_ptr x, mpfr_ptr y, mpfr_prec_t p,
+      mpfr_rnd_t r, int trint, int inexact)
+ {
+   printf ("Error: %s\ns = %u, p = %u, r = %s, trint = %d, inexact = %d\nx = ",
+diff -Naurd mpfr-4.1.0-a/tests/tsinh_cosh.c mpfr-4.1.0-b/tests/tsinh_cosh.c
+--- mpfr-4.1.0-a/tests/tsinh_cosh.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tsinh_cosh.c	2021-02-11 12:48:27.350242965 +0000
+@@ -23,7 +23,7 @@
+ #include "mpfr-test.h"
+ 
+ static void
+-failed (mpfr_t x, mpfr_t esh, mpfr_t gsh, mpfr_t ech, mpfr_t gch)
++failed (mpfr_ptr x, mpfr_ptr esh, mpfr_ptr gsh, mpfr_ptr ech, mpfr_ptr gch)
+ {
+   printf ("error : mpfr_sinh_cosh (x) x = ");
+   mpfr_out_str (stdout, 10, 0, x, MPFR_RNDD);
+@@ -43,7 +43,7 @@
+ 
+ /* check against sinh, cosh */
+ static void
+-check (mpfr_t x, mpfr_rnd_t rnd)
++check (mpfr_ptr x, mpfr_rnd_t rnd)
+ {
+   mpfr_t s, c, sx, cx;
+   int isc, is, ic;
+diff -Naurd mpfr-4.1.0-a/tests/tsqr.c mpfr-4.1.0-b/tests/tsqr.c
+--- mpfr-4.1.0-a/tests/tsqr.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tsqr.c	2021-02-11 12:48:27.350242965 +0000
+@@ -33,7 +33,7 @@
+ 
+ static void
+ error1 (mpfr_rnd_t rnd, mpfr_prec_t prec,
+-        mpfr_t in, mpfr_t outmul, mpfr_t outsqr)
++        mpfr_t in, mpfr_ptr outmul, mpfr_ptr outsqr)
+ {
+   printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd),
+          (unsigned long) prec);
+@@ -44,7 +44,7 @@
+ }
+ 
+ static void
+-error2 (mpfr_rnd_t rnd, mpfr_prec_t prec, mpfr_t in, mpfr_t out,
++error2 (mpfr_rnd_t rnd, mpfr_prec_t prec, mpfr_ptr in, mpfr_ptr out,
+         int inexactmul, int inexactsqr)
+ {
+   printf("ERROR: for %s and prec=%lu\nINPUT=", mpfr_print_rnd_mode(rnd),
+diff -Naurd mpfr-4.1.0-a/tests/tsum.c mpfr-4.1.0-b/tests/tsum.c
+--- mpfr-4.1.0-a/tests/tsum.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tsum.c	2021-02-11 12:48:27.350242965 +0000
+@@ -59,7 +59,7 @@
+ }
+ 
+ static void
+-get_exact_sum (mpfr_t sum, mpfr_t *tab, int n)
++get_exact_sum (mpfr_ptr sum, mpfr_t *tab, int n)
+ {
+   int i;
+ 
+@@ -1198,7 +1198,7 @@
+ }
+ 
+ static int
+-mpfr_sum_naive (mpfr_t s, mpfr_t *x, int n, mpfr_rnd_t rnd)
++mpfr_sum_naive (mpfr_ptr s, mpfr_t *x, int n, mpfr_rnd_t rnd)
+ {
+   int ret, i;
+   switch (n)
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:50:22.384987438 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:50:22.424987002 +0000
+@@ -0,0 +1 @@
++digamma-hugemem
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:48:27.370242746 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:50:22.424987002 +0000
+@@ -1 +1 @@
+-4.1.0-p4
++4.1.0-p5
+diff -Naurd mpfr-4.1.0-a/src/digamma.c mpfr-4.1.0-b/src/digamma.c
+--- mpfr-4.1.0-a/src/digamma.c	2020-06-18 17:17:18.000000000 +0000
++++ mpfr-4.1.0-b/src/digamma.c	2021-02-11 12:50:22.412987133 +0000
+@@ -214,19 +214,27 @@
+     (("x[%Pu]=%.*Rg rnd=%d", mpfr_get_prec(x), mpfr_log_prec, x, rnd_mode),
+      ("y[%Pu]=%.*Rg inexact=%d", mpfr_get_prec(y), mpfr_log_prec, y, inex));
+ 
+-  /* compute a precision q such that x+1 is exact */
+-  if (MPFR_PREC(x) < MPFR_GET_EXP(x))
+-    q = MPFR_EXP(x);
+-  else
+-    q = MPFR_PREC(x) + 1;
+-
+-  /* for very large x, use |digamma(x) - log(x)| < 1/x < 2^(1-EXP(x)) */
+-  if (MPFR_PREC(y) + 10 < MPFR_EXP(x))
++  /* For very large x, use |digamma(x) - log(x)| < 1/x < 2^(1-EXP(x)).
++     However, for a fixed value of GUARD, MPFR_CAN_ROUND() might fail
++     with probability 1/2^GUARD, in which case the default code will
++     fail since it requires x+1 to be exact, thus a huge precision if
++     x is huge. There are two workarounds:
++     * either perform a Ziv's loop, by increasing GUARD at each step.
++       However, this might fail if x is moderately large, in which case
++       more terms of the asymptotic expansion would be needed.
++     * implement a full asymptotic expansion (with Ziv's loop). */
++#define GUARD 30
++  if (MPFR_PREC(y) + GUARD < MPFR_EXP(x))
+     {
+       /* this ensures EXP(x) >= 3, thus x >= 4, thus log(x) > 1 */
+-      mpfr_init2 (t, MPFR_PREC(y) + 10);
+-      mpfr_log (t, x, MPFR_RNDZ);
+-      if (MPFR_CAN_ROUND (t, MPFR_PREC(y) + 10, MPFR_PREC(y), rnd_mode))
++      mpfr_init2 (t, MPFR_PREC(y) + GUARD);
++      mpfr_log (t, x, MPFR_RNDN);
++      /* |t - digamma(x)| <= 1/2*ulp(t) + |digamma(x) - log(x)|
++                          <= 1/2*ulp(t) + 2^(1-EXP(x))
++                          <= 1/2*ulp(t) + 2^(-PREC(y)-GUARD)
++                          <= ulp(t)
++         since |t| >= 1 thus ulp(t) >= 2^(1-PREC(y)-GUARD) */
++      if (MPFR_CAN_ROUND (t, MPFR_PREC(y) + GUARD, MPFR_PREC(y), rnd_mode))
+         {
+           inex = mpfr_set (y, t, rnd_mode);
+           mpfr_clear (t);
+@@ -235,6 +243,21 @@
+       mpfr_clear (t);
+     }
+ 
++  /* compute a precision q such that x+1 is exact */
++  if (MPFR_PREC(x) < MPFR_GET_EXP(x))
++    {
++      /* The goal of the first assertion is to let the compiler ignore
++         the second one when MPFR_EMAX_MAX <= MPFR_PREC_MAX. */
++      MPFR_ASSERTD (MPFR_EXP(x) <= MPFR_EMAX_MAX);
++      MPFR_ASSERTN (MPFR_EXP(x) <= MPFR_PREC_MAX);
++      q = MPFR_EXP(x);
++    }
++  else
++    q = MPFR_PREC(x) + 1;
++
++  /* FIXME: q can be much too large, e.g. equal to the maximum exponent! */
++  MPFR_LOG_MSG (("q=%Pu\n", q));
++
+   mpfr_init2 (x_plus_j, q);
+ 
+   mpfr_init2 (t, p);
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:48:27.366242791 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:50:22.424987002 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p4"
++#define MPFR_VERSION_STRING "4.1.0-p5"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:48:27.370242746 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:50:22.424987002 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p4";
++  return "4.1.0-p5";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tdigamma.c mpfr-4.1.0-b/tests/tdigamma.c
+--- mpfr-4.1.0-a/tests/tdigamma.c	2020-06-18 17:17:18.000000000 +0000
++++ mpfr-4.1.0-b/tests/tdigamma.c	2021-02-11 12:50:22.412987133 +0000
+@@ -49,12 +49,54 @@
+   mpfr_clear (y);
+ }
+ 
++/* With some GMP_CHECK_RANDOMIZE values, test_generic triggers an error
++     tests_addsize(): too much memory (576460752303432776 bytes)
++  Each time on prec = 200, n = 3, xprec = 140.
++  The following test is a more general testcase.
++*/
++static void
++bug20210206 (void)
++{
++#define NPREC 4
++  mpfr_t x, y[NPREC], z;
++  mpfr_exp_t emin, emax;
++  int i, precx, precy[NPREC] = { 200, 400, 520, 1416 };
++
++  emin = mpfr_get_emin ();
++  emax = mpfr_get_emax ();
++  set_emin (MPFR_EMIN_MIN);
++  set_emax (MPFR_EMAX_MAX);
++
++  for (i = 0; i < NPREC; i++)
++    mpfr_init2 (y[i], precy[i]);
++  mpfr_init2 (z, precy[0]);
++
++  for (precx = MPFR_PREC_MIN; precx < 150; precx++)
++    {
++      mpfr_init2 (x, precx);
++      mpfr_setmax (x, __gmpfr_emax);
++      for (i = 0; i < NPREC; i++)
++        mpfr_digamma (y[i], x, MPFR_RNDA);
++      mpfr_set (z, y[1], MPFR_RNDA);
++      MPFR_ASSERTN (mpfr_equal_p (y[0], z));
++      mpfr_clear (x);
++    }
++
++  for (i = 0; i < NPREC; i++)
++    mpfr_clear (y[i]);
++  mpfr_clear (z);
++
++  set_emin (emin);
++  set_emax (emax);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+   tests_start_mpfr ();
+ 
+   special ();
++  bug20210206 ();
+ 
+   test_generic (MPFR_PREC_MIN, 200, 20);
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:52:52.519350662 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:52:52.563350183 +0000
+@@ -0,0 +1 @@
++digamma-interm-zero
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:50:22.424987002 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:52:52.563350183 +0000
+@@ -1 +1 @@
+-4.1.0-p5
++4.1.0-p6
+diff -Naurd mpfr-4.1.0-a/src/digamma.c mpfr-4.1.0-b/src/digamma.c
+--- mpfr-4.1.0-a/src/digamma.c	2021-02-11 12:50:22.412987133 +0000
++++ mpfr-4.1.0-b/src/digamma.c	2021-02-11 12:52:52.547350357 +0000
+@@ -296,21 +296,26 @@
+       errt = mpfr_digamma_approx (t, x_plus_j);
+       expt = MPFR_GET_EXP (t);
+       mpfr_sub (t, t, u, MPFR_RNDN);
+-      if (MPFR_GET_EXP (t) < expt)
+-        errt += expt - MPFR_EXP(t);
+-      /* Warning: if u is zero (which happens when x_plus_j >= min at the
+-         beginning of the while loop above), EXP(u) is not defined.
+-         In this case we have no error from u. */
+-      if (MPFR_NOTZERO(u) && MPFR_GET_EXP (t) < MPFR_GET_EXP (u))
+-        erru += MPFR_EXP(u) - MPFR_EXP(t);
+-      if (errt > erru)
+-        errt = errt + 1;
+-      else if (errt == erru)
+-        errt = errt + 2;
+-      else
+-        errt = erru + 1;
+-      if (MPFR_CAN_ROUND (t, p - errt, MPFR_PREC(y), rnd_mode))
+-        break;
++      /* Warning! t may be zero (more likely in small precision). Note
++         that in this case, this is an exact zero, not an underflow. */
++      if (MPFR_NOTZERO(t))
++        {
++          if (MPFR_GET_EXP (t) < expt)
++            errt += expt - MPFR_EXP(t);
++          /* Warning: if u is zero (which happens when x_plus_j >= min at the
++             beginning of the while loop above), EXP(u) is not defined.
++             In this case we have no error from u. */
++          if (MPFR_NOTZERO(u) && MPFR_GET_EXP (t) < MPFR_GET_EXP (u))
++            erru += MPFR_EXP(u) - MPFR_EXP(t);
++          if (errt > erru)
++            errt = errt + 1;
++          else if (errt == erru)
++            errt = errt + 2;
++          else
++            errt = erru + 1;
++          if (MPFR_CAN_ROUND (t, p - errt, MPFR_PREC(y), rnd_mode))
++            break;
++        }
+       MPFR_ZIV_NEXT (loop, p);
+       mpfr_set_prec (t, p);
+       mpfr_set_prec (u, p);
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:50:22.424987002 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:52:52.559350226 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p5"
++#define MPFR_VERSION_STRING "4.1.0-p6"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:50:22.424987002 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:52:52.559350226 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p5";
++  return "4.1.0-p6";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tdigamma.c mpfr-4.1.0-b/tests/tdigamma.c
+--- mpfr-4.1.0-a/tests/tdigamma.c	2021-02-11 12:50:22.412987133 +0000
++++ mpfr-4.1.0-b/tests/tdigamma.c	2021-02-11 12:52:52.547350357 +0000
+@@ -90,6 +90,26 @@
+   set_emax (emax);
+ }
+ 
++/* another test that fails with GMP_CHECK_RANDOMIZE=1612741376857003
++   on revision 14398 */
++static void
++bug20210208 (void)
++{
++  mpfr_t x, y;
++  int inex;
++
++  mpfr_init2 (x, 73);
++  mpfr_init2 (y, 1);
++  mpfr_set_str (x, "1.4613470547060071827450", 10, MPFR_RNDN);
++  mpfr_clear_flags ();
++  inex = mpfr_digamma (y, x, MPFR_RNDU);
++  MPFR_ASSERTN (mpfr_cmp_si_2exp (y, -1, -12) == 0);
++  MPFR_ASSERTN (inex > 0);
++  MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
++  mpfr_clear (x);
++  mpfr_clear (y);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -97,6 +117,7 @@
+ 
+   special ();
+   bug20210206 ();
++  bug20210208 ();
+ 
+   test_generic (MPFR_PREC_MIN, 200, 20);
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-11 12:53:38.382850990 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-11 12:53:38.426850512 +0000
+@@ -0,0 +1 @@
++jn-interm-zero
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:52:52.563350183 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-11 12:53:38.426850512 +0000
+@@ -1 +1 @@
+-4.1.0-p6
++4.1.0-p7
+diff -Naurd mpfr-4.1.0-a/src/jyn_asympt.c mpfr-4.1.0-b/src/jyn_asympt.c
+--- mpfr-4.1.0-a/src/jyn_asympt.c	2020-07-10 10:33:32.000000000 +0000
++++ mpfr-4.1.0-b/src/jyn_asympt.c	2021-02-11 12:53:38.410850685 +0000
+@@ -69,6 +69,8 @@
+   MPFR_ZIV_INIT (loop, w);
+   for (;;)
+     {
++      int ok = 1;
++
+       mpfr_set_prec (c, w);
+       mpfr_init2 (s, w);
+       mpfr_init2 (P, w);
+@@ -92,6 +94,13 @@
+       /* now s approximates sin(z)+cos(z), and c approximates sin(z)-cos(z),
+          with total absolute error bounded by 2^(1-w). */
+ 
++      /* if s or c is zero, MPFR_GET_EXP will fail below */
++      if (MPFR_IS_ZERO(s) || MPFR_IS_ZERO(c))
++        {
++          ok = 0;
++          goto clear;
++        }
++
+       /* precompute 1/(8|z|) */
+       mpfr_si_div (iz, MPFR_IS_POS(z) ? 1 : -1, z, MPFR_RNDN);   /* err <= 1 */
+       mpfr_div_2ui (iz, iz, 3, MPFR_RNDN);
+@@ -257,6 +266,9 @@
+       err = (err >= err2) ? err + 1 : err2 + 1;
+       /* the absolute error on c is bounded by 2^(err - w) */
+ 
++      err -= MPFR_GET_EXP (c);
++
++    clear:
+       mpfr_clear (s);
+       mpfr_clear (P);
+       mpfr_clear (Q);
+@@ -266,8 +278,7 @@
+       mpfr_clear (err_s);
+       mpfr_clear (err_u);
+ 
+-      err -= MPFR_GET_EXP (c);
+-      if (MPFR_LIKELY (MPFR_CAN_ROUND (c, w - err, MPFR_PREC(res), r)))
++      if (ok && MPFR_LIKELY (MPFR_CAN_ROUND (c, w - err, MPFR_PREC(res), r)))
+         break;
+       if (diverge != 0)
+         {
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:52:52.559350226 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-11 12:53:38.422850555 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p6"
++#define MPFR_VERSION_STRING "4.1.0-p7"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:52:52.559350226 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-11 12:53:38.426850512 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p6";
++  return "4.1.0-p7";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tj0.c mpfr-4.1.0-b/tests/tj0.c
+--- mpfr-4.1.0-a/tests/tj0.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tj0.c	2021-02-11 12:53:38.410850685 +0000
+@@ -27,6 +27,25 @@
+ #define REDUCE_EMAX 262143 /* otherwise arg. reduction is too expensive */
+ #include "tgeneric.c"
+ 
++/* bug found in revision 14399 with GMP_CHECK_RANDOMIZE=1612721106588971 */
++static void
++bug20210208 (void)
++{
++  mpfr_t x, y;
++  int inex;
++
++  mpfr_init2 (x, 79);
++  mpfr_init2 (y, 1);
++  mpfr_set_str (x, "2.552495117262005805960565e+02", 10, MPFR_RNDN);
++  mpfr_clear_flags ();
++  inex = mpfr_j0 (y, x, MPFR_RNDZ);
++  MPFR_ASSERTN (mpfr_cmp_si_2exp (y, -1, -5) == 0);
++  MPFR_ASSERTN (inex > 0);
++  MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
++  mpfr_clear (x);
++  mpfr_clear (y);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -35,6 +54,8 @@
+ 
+   tests_start_mpfr ();
+ 
++  bug20210208 ();
++
+   mpfr_init (x);
+   mpfr_init (y);
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-17 17:22:34.594973310 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-17 17:22:34.702972090 +0000
+@@ -0,0 +1 @@
++digamma-interm-zero2
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-11 12:53:38.426850512 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-17 17:22:34.702972090 +0000
+@@ -1 +1 @@
+-4.1.0-p7
++4.1.0-p8
+diff -Naurd mpfr-4.1.0-a/src/digamma.c mpfr-4.1.0-b/src/digamma.c
+--- mpfr-4.1.0-a/src/digamma.c	2021-02-11 12:52:52.547350357 +0000
++++ mpfr-4.1.0-b/src/digamma.c	2021-02-17 17:22:34.690972226 +0000
+@@ -173,16 +173,19 @@
+       mpfr_digamma (v, u, MPFR_RNDN);   /* error <= 1/2 ulp */
+       expv = MPFR_GET_EXP (v);
+       mpfr_sub (v, v, t, MPFR_RNDN);
+-      if (MPFR_GET_EXP (v) < MPFR_GET_EXP (t))
+-        e1 += MPFR_EXP(t) - MPFR_EXP(v); /* scale error for t wrt new v */
+-      /* now take into account the 1/2 ulp error for v */
+-      if (expv - MPFR_EXP(v) - 1 > e1)
+-        e1 = expv - MPFR_EXP(v) - 1;
+-      else
+-        e1 ++;
+-      e1 ++; /* rounding error for mpfr_sub */
+-      if (MPFR_CAN_ROUND (v, p - e1, MPFR_PREC(y), rnd_mode))
+-        break;
++      if (MPFR_NOTZERO(v))
++        {
++          if (MPFR_GET_EXP (v) < MPFR_GET_EXP (t))
++            e1 += MPFR_EXP(t) - MPFR_EXP(v); /* scale error for t wrt new v */
++          /* now take into account the 1/2 ulp error for v */
++          if (expv - MPFR_EXP(v) - 1 > e1)
++            e1 = expv - MPFR_EXP(v) - 1;
++          else
++            e1 ++;
++          e1 ++; /* rounding error for mpfr_sub */
++          if (MPFR_CAN_ROUND (v, p - e1, MPFR_PREC(y), rnd_mode))
++            break;
++        }
+       MPFR_ZIV_NEXT (loop, p);
+       mpfr_set_prec (t, p);
+       mpfr_set_prec (v, p);
+@@ -416,10 +419,8 @@
+         }
+     }
+ 
+-  if (MPFR_IS_NEG(x))
+-    inex = mpfr_digamma_reflection (y, x, rnd_mode);
+   /* if x < 1/2 we use the reflection formula */
+-  else if (MPFR_EXP(x) < 0)
++  if (MPFR_IS_NEG(x) || MPFR_EXP(x) < 0)
+     inex = mpfr_digamma_reflection (y, x, rnd_mode);
+   else
+     inex = mpfr_digamma_positive (y, x, rnd_mode);
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-11 12:53:38.422850555 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-17 17:22:34.702972090 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p7"
++#define MPFR_VERSION_STRING "4.1.0-p8"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-11 12:53:38.426850512 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-17 17:22:34.702972090 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p7";
++  return "4.1.0-p8";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tdigamma.c mpfr-4.1.0-b/tests/tdigamma.c
+--- mpfr-4.1.0-a/tests/tdigamma.c	2021-02-11 12:52:52.547350357 +0000
++++ mpfr-4.1.0-b/tests/tdigamma.c	2021-02-17 17:22:34.690972226 +0000
+@@ -110,6 +110,26 @@
+   mpfr_clear (y);
+ }
+ 
++/* another test that fails with GMP_CHECK_RANDOMIZE=1613197421465830
++   on revision 14429 */
++static void
++bug20210215 (void)
++{
++  mpfr_t x, y;
++  int inex;
++
++  mpfr_init2 (x, 510);
++  mpfr_init2 (y, 4);
++  mpfr_set_str (x, "-8.2923051438433494998166335341807999322052669984208422481227138906096000469898717007386115912802685588348601663465077353194268894939972221117314512518182580e+35", 10, MPFR_RNDN);
++  mpfr_clear_flags ();
++  inex = mpfr_digamma (y, x, MPFR_RNDU);
++  MPFR_ASSERTN (mpfr_cmp_ui0 (y, 88) == 0);
++  MPFR_ASSERTN (inex > 0);
++  MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
++  mpfr_clear (x);
++  mpfr_clear (y);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -118,6 +138,7 @@
+   special ();
+   bug20210206 ();
+   bug20210208 ();
++  bug20210215 ();
+ 
+   test_generic (MPFR_PREC_MIN, 200, 20);
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-02-17 17:25:46.396981483 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-02-17 17:25:46.440981068 +0000
+@@ -0,0 +1 @@
++jyn_asympt-interm-zero
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-17 17:22:34.702972090 +0000
++++ mpfr-4.1.0-b/VERSION	2021-02-17 17:25:46.440981068 +0000
+@@ -1 +1 @@
+-4.1.0-p8
++4.1.0-p9
+diff -Naurd mpfr-4.1.0-a/src/jyn_asympt.c mpfr-4.1.0-b/src/jyn_asympt.c
+--- mpfr-4.1.0-a/src/jyn_asympt.c	2021-02-11 12:53:38.410850685 +0000
++++ mpfr-4.1.0-b/src/jyn_asympt.c	2021-02-17 17:25:46.424981219 +0000
+@@ -69,7 +69,7 @@
+   MPFR_ZIV_INIT (loop, w);
+   for (;;)
+     {
+-      int ok = 1;
++      int ok = 0;
+ 
+       mpfr_set_prec (c, w);
+       mpfr_init2 (s, w);
+@@ -96,10 +96,7 @@
+ 
+       /* if s or c is zero, MPFR_GET_EXP will fail below */
+       if (MPFR_IS_ZERO(s) || MPFR_IS_ZERO(c))
+-        {
+-          ok = 0;
+-          goto clear;
+-        }
++        goto clear; /* with ok=0 */
+ 
+       /* precompute 1/(8|z|) */
+       mpfr_si_div (iz, MPFR_IS_POS(z) ? 1 : -1, z, MPFR_RNDN);   /* err <= 1 */
+@@ -227,6 +224,9 @@
+           mpfr_sub (s, c, s, MPFR_RNDN);
+ #endif
+         }
++      if (MPFR_IS_ZERO(s))
++        goto clear; /* with ok=0 */
++      ok = 1;
+       if ((n & 2) != 0)
+         mpfr_neg (s, s, MPFR_RNDN);
+       if (MPFR_GET_EXP (s) > err)
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-17 17:22:34.702972090 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-02-17 17:25:46.436981105 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p8"
++#define MPFR_VERSION_STRING "4.1.0-p9"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-17 17:22:34.702972090 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-02-17 17:25:46.440981068 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p8";
++  return "4.1.0-p9";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/mpfr-test.h mpfr-4.1.0-b/tests/mpfr-test.h
+--- mpfr-4.1.0-a/tests/mpfr-test.h	2020-06-29 13:57:32.000000000 +0000
++++ mpfr-4.1.0-b/tests/mpfr-test.h	2021-02-17 17:25:46.424981219 +0000
+@@ -191,6 +191,8 @@
+ 
+ #define mpfr_cmp0(x,y) (MPFR_ASSERTN (!MPFR_IS_NAN (x) && !MPFR_IS_NAN (y)), mpfr_cmp (x,y))
+ #define mpfr_cmp_ui0(x,i) (MPFR_ASSERTN (!MPFR_IS_NAN (x)), mpfr_cmp_ui (x,i))
++#define mpfr_cmp_si_2exp0(x,i,e) (MPFR_ASSERTN (!MPFR_IS_NAN (x)), \
++                                  mpfr_cmp_si_2exp (x,i,e))
+ 
+ /* define CHECK_EXTERNAL if you want to check mpfr against another library
+    with correct rounding. You'll probably have to modify mpfr_print_raw()
+diff -Naurd mpfr-4.1.0-a/tests/tj1.c mpfr-4.1.0-b/tests/tj1.c
+--- mpfr-4.1.0-a/tests/tj1.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tj1.c	2021-02-17 17:25:46.424981219 +0000
+@@ -55,14 +55,14 @@
+               /* since |x| is just above 2^e, |j1(x)| is just above 2^(e-1),
+                  thus y should be 2^(e-1) and the inexact flag should be
+                  of opposite sign of x */
+-              MPFR_ASSERTN(mpfr_cmp_si_2exp (y, sign, e - 1) == 0);
++              MPFR_ASSERTN(mpfr_cmp_si_2exp0 (y, sign, e - 1) == 0);
+               MPFR_ASSERTN(VSIGN (inex) * sign < 0);
+             }
+           else
+             {
+               /* here |y| should be 0.5*2^emin and the inexact flag should
+                  have the sign of x */
+-              MPFR_ASSERTN(mpfr_cmp_si_2exp (y, sign, e) == 0);
++              MPFR_ASSERTN(mpfr_cmp_si_2exp0 (y, sign, e) == 0);
+               MPFR_ASSERTN(VSIGN (inex) * sign > 0);
+             }
+         }
+@@ -72,6 +72,26 @@
+   mpfr_clear (y);
+ }
+ 
++/* a test that fails with GMP_CHECK_RANDOMIZE=1613146232984428
++   on revision 14429 */
++static void
++bug20210215 (void)
++{
++  mpfr_t x, y;
++  int inex;
++
++  mpfr_init2 (x, 221);
++  mpfr_init2 (y, 1);
++  mpfr_set_str (x, "1.6484611511696130037307738844228498447763863563070374544054791168614e+01", 10, MPFR_RNDN);
++  mpfr_clear_flags ();
++  inex = mpfr_j1 (y, x, MPFR_RNDZ);
++  MPFR_ASSERTN (mpfr_cmp_si_2exp0 (y, -1, -9) == 0);
++  MPFR_ASSERTN (inex > 0);
++  MPFR_ASSERTN (__gmpfr_flags == MPFR_FLAGS_INEXACT);
++  mpfr_clear (x);
++  mpfr_clear (y);
++}
++
+ int
+ main (int argc, char *argv[])
+ {
+@@ -79,6 +99,8 @@
+ 
+   tests_start_mpfr ();
+ 
++  bug20210215 ();
++
+   test_small ();
+ 
+   mpfr_init (x);
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-03-09 13:55:43.183158946 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-03-09 13:55:43.223158508 +0000
+@@ -0,0 +1 @@
++macros
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-02-17 17:25:46.440981068 +0000
++++ mpfr-4.1.0-b/VERSION	2021-03-09 13:55:43.223158508 +0000
+@@ -1 +1 @@
+-4.1.0-p9
++4.1.0-p10
+diff -Naurd mpfr-4.1.0-a/doc/mpfr.info mpfr-4.1.0-b/doc/mpfr.info
+--- mpfr-4.1.0-a/doc/mpfr.info	2020-07-10 11:59:13.000000000 +0000
++++ mpfr-4.1.0-b/doc/mpfr.info	2021-03-09 13:55:51.167071327 +0000
+@@ -3217,7 +3217,11 @@
+ 
+    Each function in this interface is also implemented as a macro for
+ efficiency reasons: for example ‘mpfr_custom_init (s, p)’ uses the
+-macro, while ‘(mpfr_custom_init) (s, p)’ uses the function.
++macro, while ‘(mpfr_custom_init) (s, p)’ uses the function.  Note that
++the macro may evaluate arguments multiple times (or none).  Moreover,
++macros implementing functions with the ‘void’ return type may not be
++used in contexts where an expression is expected, e.g., inside
++‘for(...)’ or before a comma operator.
+ 
+    Note 1: MPFR functions may still initialize temporary floating-point
+ numbers using ‘mpfr_init’ and similar functions.  See Custom Allocation
+@@ -4579,13 +4583,13 @@
+                                                               (line 115)
+ * mpfr_csch:                             Transcendental Functions.
+                                                               (line 180)
+-* mpfr_custom_get_exp:                   Custom Interface.    (line  76)
+-* mpfr_custom_get_kind:                  Custom Interface.    (line  66)
+-* mpfr_custom_get_significand:           Custom Interface.    (line  71)
+-* mpfr_custom_get_size:                  Custom Interface.    (line  37)
+-* mpfr_custom_init:                      Custom Interface.    (line  41)
+-* mpfr_custom_init_set:                  Custom Interface.    (line  48)
+-* mpfr_custom_move:                      Custom Interface.    (line  85)
++* mpfr_custom_get_exp:                   Custom Interface.    (line  80)
++* mpfr_custom_get_kind:                  Custom Interface.    (line  70)
++* mpfr_custom_get_significand:           Custom Interface.    (line  75)
++* mpfr_custom_get_size:                  Custom Interface.    (line  41)
++* mpfr_custom_init:                      Custom Interface.    (line  45)
++* mpfr_custom_init_set:                  Custom Interface.    (line  52)
++* mpfr_custom_move:                      Custom Interface.    (line  89)
+ * MPFR_DECL_INIT:                        Initialization Functions.
+                                                               (line  77)
+ * mpfr_digamma:                          Transcendental Functions.
+@@ -5165,19 +5169,19 @@
+ Node: Memory Handling Functions155904
+ Node: Compatibility with MPF157792
+ Node: Custom Interface160961
+-Node: Internals165592
+-Node: API Compatibility167136
+-Node: Type and Macro Changes169084
+-Node: Added Functions172267
+-Node: Changed Functions177074
+-Node: Removed Functions184433
+-Node: Other Changes185163
+-Node: MPFR and the IEEE 754 Standard186864
+-Node: Contributors189481
+-Node: References192620
+-Node: GNU Free Documentation License194501
+-Node: Concept Index217095
+-Node: Function and Type Index223168
++Node: Internals165852
++Node: API Compatibility167396
++Node: Type and Macro Changes169344
++Node: Added Functions172527
++Node: Changed Functions177334
++Node: Removed Functions184693
++Node: Other Changes185423
++Node: MPFR and the IEEE 754 Standard187124
++Node: Contributors189741
++Node: References192880
++Node: GNU Free Documentation License194761
++Node: Concept Index217355
++Node: Function and Type Index223428
+ 
+ End Tag Table
+ 
+diff -Naurd mpfr-4.1.0-a/doc/mpfr.texi mpfr-4.1.0-b/doc/mpfr.texi
+--- mpfr-4.1.0-a/doc/mpfr.texi	2020-07-10 11:52:33.000000000 +0000
++++ mpfr-4.1.0-b/doc/mpfr.texi	2021-03-09 13:55:43.211158639 +0000
+@@ -3817,6 +3817,12 @@
+ Each function in this interface is also implemented as a macro for
+ efficiency reasons: for example @code{mpfr_custom_init (s, p)}
+ uses the macro, while @code{(mpfr_custom_init) (s, p)} uses the function.
++Note that the macro may evaluate arguments multiple times (or none).
++Moreover, macros implementing functions with the @code{void} return type
++may not be used in contexts where an expression is expected, e.g., inside
++ at code{for(...)} or before a comma operator.
++ at c These limitations with macros cannot be avoided in a C90 compatible way.
++ at c In the future, inline functions could be used.
+ 
+ Note 1: MPFR functions may still initialize temporary floating-point numbers
+ using @code{mpfr_init} and similar functions. See Custom Allocation (GNU MP)@.
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-02-17 17:25:46.436981105 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-03-09 13:55:43.223158508 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p9"
++#define MPFR_VERSION_STRING "4.1.0-p10"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+@@ -833,23 +833,39 @@
+    even if it produces faster and smaller code. */
+ #ifndef MPFR_USE_NO_MACRO
+ 
+-/* Inlining these functions is both faster and smaller */
+-#define mpfr_nan_p(_x)      ((_x)->_mpfr_exp == __MPFR_EXP_NAN)
+-#define mpfr_inf_p(_x)      ((_x)->_mpfr_exp == __MPFR_EXP_INF)
+-#define mpfr_zero_p(_x)     ((_x)->_mpfr_exp == __MPFR_EXP_ZERO)
+-#define mpfr_regular_p(_x)  ((_x)->_mpfr_exp >  __MPFR_EXP_INF)
++/* In the implementation of these macros, we need to make sure that the
++   arguments are evaluated one time exactly and that type conversion is
++   done as it would be with a function. Tests should be added to ensure
++   that.
++   Note that the macros for the custom interface are not concerned; the
++   MPFR manual has been clarified. */
++
++/* Prevent x from being used as an lvalue.
++   Thanks to Wojtek Lerch and Tim Rentsch for the idea. */
++#define MPFR_VALUE_OF(x)  (0 ? (x) : (x))
++
++/* The following macro converts the argument to mpfr_srcptr, as in type
++   conversion for function parameters. But it will detect disallowed
++   implicit conversions, e.g. when the argument has an integer type. */
++#define MPFR_SRCPTR(x) ((mpfr_srcptr) (0 ? (x) : (mpfr_srcptr) (x)))
++#define MPFR_GET_SIGN(_x) MPFR_VALUE_OF(MPFR_SIGN(MPFR_SRCPTR(_x)))
++
++#define mpfr_nan_p(_x)      (MPFR_SRCPTR(_x)->_mpfr_exp == __MPFR_EXP_NAN)
++#define mpfr_inf_p(_x)      (MPFR_SRCPTR(_x)->_mpfr_exp == __MPFR_EXP_INF)
++#define mpfr_zero_p(_x)     (MPFR_SRCPTR(_x)->_mpfr_exp == __MPFR_EXP_ZERO)
++#define mpfr_regular_p(_x)  (MPFR_SRCPTR(_x)->_mpfr_exp >  __MPFR_EXP_INF)
++
++/* mpfr_sgn is documented as a macro, thus the following code is fine.
++   But it would be safer to regard it as a function in some future
++   MPFR version. */
+ #define mpfr_sgn(_x)                                               \
+   ((_x)->_mpfr_exp < __MPFR_EXP_INF ?                              \
+    (mpfr_nan_p (_x) ? mpfr_set_erangeflag () : (mpfr_void) 0), 0 : \
+    MPFR_SIGN (_x))
+ 
+-/* Prevent them from using as lvalues */
+-#define MPFR_VALUE_OF(x)  (0 ? (x) : (x))
+-#define mpfr_get_prec(_x) MPFR_VALUE_OF((_x)->_mpfr_prec)
+-#define mpfr_get_exp(_x)  MPFR_VALUE_OF((_x)->_mpfr_exp)
+-/* Note 1: If need be, the MPFR_VALUE_OF can be used for other expressions
+-   (of any type). Thanks to Wojtek Lerch and Tim Rentsch for the idea.
+-   Note 2: Defining mpfr_get_exp() as a macro has the effect to disable
++#define mpfr_get_prec(_x) MPFR_VALUE_OF(MPFR_SRCPTR(_x)->_mpfr_prec)
++#define mpfr_get_exp(_x)  MPFR_VALUE_OF(MPFR_SRCPTR(_x)->_mpfr_exp)
++/* Note: Defining mpfr_get_exp() as a macro has the effect to disable
+    the check that the argument is a pure FP number (done in the function);
+    this increases the risk of undetected error and makes debugging more
+    complex. Is it really worth in practice? (Potential FIXME) */
+@@ -861,11 +877,17 @@
+ 
+ #define mpfr_cmp_ui(b,i) mpfr_cmp_ui_2exp((b),(i),0)
+ #define mpfr_cmp_si(b,i) mpfr_cmp_si_2exp((b),(i),0)
+-#define mpfr_set(a,b,r)  mpfr_set4(a,b,r,MPFR_SIGN(b))
++#if __GNUC__ > 2 || __GNUC_MINOR__ >= 95
++#define mpfr_set(a,b,r)                         \
++  __extension__ ({                              \
++      mpfr_srcptr _p = (b);                     \
++      mpfr_set4(a,_p,r,MPFR_SIGN(_p));          \
++    })
++#endif
+ #define mpfr_abs(a,b,r)  mpfr_set4(a,b,r,1)
+-#define mpfr_copysign(a,b,c,r) mpfr_set4(a,b,r,MPFR_SIGN(c))
++#define mpfr_copysign(a,b,c,r) mpfr_set4(a,b,r,MPFR_GET_SIGN(c))
+ #define mpfr_setsign(a,b,s,r) mpfr_set4(a,b,r,(s) ? -1 : 1)
+-#define mpfr_signbit(x)  (MPFR_SIGN(x) < 0)
++#define mpfr_signbit(x)  (MPFR_GET_SIGN(x) < 0)
+ #define mpfr_cmp(b, c)   mpfr_cmp3(b, c, 1)
+ #define mpfr_mul_2exp(y,x,n,r) mpfr_mul_2ui((y),(x),(n),(r))
+ #define mpfr_div_2exp(y,x,n,r) mpfr_div_2ui((y),(x),(n),(r))
+diff -Naurd mpfr-4.1.0-a/src/ubf.c mpfr-4.1.0-b/src/ubf.c
+--- mpfr-4.1.0-a/src/ubf.c	2020-02-12 01:38:57.000000000 +0000
++++ mpfr-4.1.0-b/src/ubf.c	2021-03-09 13:55:43.211158639 +0000
+@@ -78,7 +78,7 @@
+       mpfr_get_prec (b), mpfr_log_prec, b,
+       mpfr_get_prec (c), mpfr_log_prec, c),
+      ("a[%Pu]=%.*Rg",
+-      mpfr_get_prec (a), mpfr_log_prec, a));
++      mpfr_get_prec ((mpfr_ptr) a), mpfr_log_prec, a));
+ 
+   MPFR_ASSERTD ((mpfr_ptr) a != b);
+   MPFR_ASSERTD ((mpfr_ptr) a != c);
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-02-17 17:25:46.440981068 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-03-09 13:55:43.223158508 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p9";
++  return "4.1.0-p10";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/mpfr-test.h mpfr-4.1.0-b/tests/mpfr-test.h
+--- mpfr-4.1.0-a/tests/mpfr-test.h	2021-02-17 17:25:46.424981219 +0000
++++ mpfr-4.1.0-b/tests/mpfr-test.h	2021-03-09 13:55:43.211158639 +0000
+@@ -92,6 +92,32 @@
+ #define STRINGIZE(S) #S
+ #define MAKE_STR(S) STRINGIZE(S)
+ 
++/* In C (but not C++), mpfr_ptr and mpfr_srcptr arguments can be provided
++   in a different pointer type, such as void *. For functions implemented
++   as macros, the type conversion for the function parameters will not be
++   done by the compiler, which means potential bugs in these implementations
++   if we forget to take these unusual cases into account. So we need to test
++   such arguments, in order to make sure that the arguments are converted to
++   the expected type when needed.
++
++   However, at least when the function is not implemented as a macro (which
++   is the case when MPFR_USE_NO_MACRO is defined), such tests with void *
++   arguments are not valid in C++; therefore, we will not do the cast to
++   void * if the __cplusplus macro is defined. And with GCC compilers (and
++   compatible), we will ignore the -Wc++-compat option around these tests.
++
++   Note: in the future, inline functions could be used instead of macros,
++   and such tests would become useless (except to detect compiler bugs).
++*/
++#if defined (__cplusplus)
++#define VOIDP_CAST(X) (X)
++#else
++#define VOIDP_CAST(X) ((void *) (X))
++#if defined (__GNUC__)
++#define IGNORE_CPP_COMPAT
++#endif
++#endif
++
+ #if defined (__cplusplus)
+ extern "C" {
+ #endif
+diff -Naurd mpfr-4.1.0-a/tests/tcopysign.c mpfr-4.1.0-b/tests/tcopysign.c
+--- mpfr-4.1.0-a/tests/tcopysign.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tcopysign.c	2021-03-09 13:55:43.211158639 +0000
+@@ -26,26 +26,72 @@
+ copysign_variant (mpfr_ptr z, mpfr_srcptr x, mpfr_srcptr y,
+                   mpfr_rnd_t rnd_mode, int k)
+ {
++  mpfr_srcptr p;
++  int a = 0, b = 0, c = 0;
++
++  /* invalid sign, to test that the sign is always correctly set */
++  MPFR_SIGN (z) = 0;
++
++  if (k >= 8)
++    {
++      MPFR_ASSERTN (MPFR_PREC (z) >= MPFR_PREC (x));
++      mpfr_set (z, x, MPFR_RNDN);
++      p = z;
++      k -= 8;
++    }
++  else
++    p = x;
++
+   mpfr_clear_flags ();
+   switch (k)
+     {
+     case 0:
+-      mpfr_copysign (z, x, y, MPFR_RNDN);
++      mpfr_copysign (z, p, y, rnd_mode);
+       return;
+     case 1:
+-      (mpfr_copysign) (z, x, y, MPFR_RNDN);
++      (mpfr_copysign) (z, p, y, rnd_mode);
+       return;
+     case 2:
+-      mpfr_setsign (z, x, mpfr_signbit (y), MPFR_RNDN);
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++      mpfr_copysign ((a++, VOIDP_CAST(z)),
++                     (b++, VOIDP_CAST(p)),
++                     (c++, VOIDP_CAST(y)), rnd_mode);
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
++      MPFR_ASSERTN (a == 1);
++      MPFR_ASSERTN (b == 1);
++      MPFR_ASSERTN (c == 1);
+       return;
+     case 3:
+-      mpfr_setsign (z, x, (mpfr_signbit) (y), MPFR_RNDN);
++      mpfr_setsign (z, p, mpfr_signbit (y), rnd_mode);
+       return;
+     case 4:
+-      (mpfr_setsign) (z, x, mpfr_signbit (y), MPFR_RNDN);
++      mpfr_setsign (z, p, (mpfr_signbit) (y), rnd_mode);
+       return;
+     case 5:
+-      (mpfr_setsign) (z, x, (mpfr_signbit) (y), MPFR_RNDN);
++      (mpfr_setsign) (z, p, mpfr_signbit (y), rnd_mode);
++      return;
++    case 6:
++      (mpfr_setsign) (z, p, (mpfr_signbit) (y), rnd_mode);
++      return;
++    case 7:
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++      mpfr_setsign ((a++, VOIDP_CAST(z)),
++                    (b++, VOIDP_CAST(p)),
++                    mpfr_signbit ((c++, VOIDP_CAST(y))), rnd_mode);
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
++      MPFR_ASSERTN (a == 1);
++      MPFR_ASSERTN (b == 1);
++      MPFR_ASSERTN (c == 1);
+       return;
+     }
+ }
+@@ -64,7 +110,7 @@
+ 
+   for (i = 0; i <= 1; i++)
+     for (j = 0; j <= 1; j++)
+-      for (k = 0; k <= 5; k++)
++      for (k = 0; k < 16; k++)
+         {
+           mpfr_set_nan (x);
+           i ? MPFR_SET_NEG (x) : MPFR_SET_POS (x);
+diff -Naurd mpfr-4.1.0-a/tests/texceptions.c mpfr-4.1.0-b/tests/texceptions.c
+--- mpfr-4.1.0-a/tests/texceptions.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/texceptions.c	2021-03-09 13:55:43.211158639 +0000
+@@ -103,10 +103,26 @@
+ check_get_prec (void)
+ {
+   mpfr_t x;
++  int i = 0;
+ 
+   mpfr_init2 (x, 17);
+-  if (mpfr_get_prec (x) != 17 || (mpfr_get_prec)(x) != 17)
++
++  if (mpfr_get_prec (x) != 17 || (mpfr_get_prec) (x) != 17)
+     PRINT_ERROR ("mpfr_get_prec");
++
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++
++  if (mpfr_get_prec ((i++, VOIDP_CAST(x))) != 17)
++    PRINT_ERROR ("mpfr_get_prec (2)");
++
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
++
++  MPFR_ASSERTN (i == 1);
+   mpfr_clear (x);
+ }
+ 
+diff -Naurd mpfr-4.1.0-a/tests/tisnan.c mpfr-4.1.0-b/tests/tisnan.c
+--- mpfr-4.1.0-a/tests/tisnan.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tisnan.c	2021-03-09 13:55:43.211158639 +0000
+@@ -27,180 +27,235 @@
+ main (void)
+ {
+   mpfr_t  x;
++  int i = 0, j = 0;
++
++  /* We need to check that when the function is implemented by a macro,
++     it behaves correctly. */
++#define ARG     (i++, VOIDP_CAST(x))
++#define CHECK   MPFR_ASSERTN (i == ++j)
+ 
+   tests_start_mpfr ();
+ 
+   mpfr_init (x);
+ 
++#if 0
++  /* The following should yield a compilation error when the functions
++     are implemented as macros. Change 0 to 1 above in order to test. */
++  (void) (mpfr_nan_p (1L));
++  (void) (mpfr_inf_p (1L));
++  (void) (mpfr_number_p (1L));
++  (void) (mpfr_zero_p (1L));
++  (void) (mpfr_regular_p (1L));
++#endif
++
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++
+   /* check +infinity gives non-zero for mpfr_inf_p only */
+   mpfr_set_ui (x, 1L, MPFR_RNDZ);
+   mpfr_div_ui (x, x, 0L, MPFR_RNDZ);
+-  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) )
++  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) || mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(+Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) == 0)
++  CHECK;
++  if (!mpfr_inf_p (x) || !(mpfr_inf_p) (x) || !mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(+Inf) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) || (mpfr_number_p) (x) )
++  CHECK;
++  if (mpfr_number_p (x) || (mpfr_number_p) (x) || mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(+Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) )
++  CHECK;
++  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) || mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_zero_p(+Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) )
++  CHECK;
++  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) || mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(+Inf) gives non-zero\n");
+       exit (1);
+     }
++  CHECK;
+ 
+   /* same for -Inf */
+   mpfr_neg (x, x, MPFR_RNDN);
+-  if (mpfr_nan_p (x) || (mpfr_nan_p(x)))
++  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) || mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(-Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) == 0)
++  CHECK;
++  if (!mpfr_inf_p (x) || !(mpfr_inf_p) (x) || !mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(-Inf) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) || (mpfr_number_p)(x) )
++  CHECK;
++  if (mpfr_number_p (x) || (mpfr_number_p) (x) || mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(-Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) || (mpfr_zero_p)(x) )
++  CHECK;
++  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) || mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_zero_p(-Inf) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) )
++  CHECK;
++  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) || mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(-Inf) gives non-zero\n");
+       exit (1);
+     }
++  CHECK;
+ 
+   /* same for NaN */
+   mpfr_sub (x, x, x, MPFR_RNDN);
+-  if (mpfr_nan_p (x) == 0)
++  if (!mpfr_nan_p (x) || !(mpfr_nan_p) (x) || !mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(NaN) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) || (mpfr_inf_p)(x) )
++  CHECK;
++  if (mpfr_inf_p (x) || (mpfr_inf_p) (x) || mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(NaN) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) || (mpfr_number_p) (x) )
++  CHECK;
++  if (mpfr_number_p (x) || (mpfr_number_p) (x) || mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(NaN) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) || (mpfr_zero_p)(x) )
++  CHECK;
++  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) || mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(NaN) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) )
++  CHECK;
++  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) || mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(NaN) gives non-zero\n");
+       exit (1);
+     }
++  CHECK;
+ 
+   /* same for a regular number */
+   mpfr_set_ui (x, 1, MPFR_RNDN);
+-  if (mpfr_nan_p (x) || (mpfr_nan_p)(x))
++  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) || mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(1) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) || (mpfr_inf_p)(x) )
++  CHECK;
++  if (mpfr_inf_p (x) || (mpfr_inf_p) (x) || mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(1) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) == 0)
++  CHECK;
++  if (!mpfr_number_p (x) || !(mpfr_number_p) (x) || !mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(1) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) )
++  CHECK;
++  if (mpfr_zero_p (x) || (mpfr_zero_p) (x) || mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_zero_p(1) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) == 0 || (mpfr_regular_p) (x) == 0)
++  CHECK;
++  if (!mpfr_regular_p (x) || !(mpfr_regular_p) (x) || !mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(1) gives zero\n");
+       exit (1);
+     }
++  CHECK;
+ 
+   /* Same for +0 */
+   mpfr_set_ui (x, 0, MPFR_RNDN);
+-  if (mpfr_nan_p (x) || (mpfr_nan_p)(x))
++  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) || mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(+0) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) || (mpfr_inf_p)(x) )
++  CHECK;
++  if (mpfr_inf_p (x) || (mpfr_inf_p) (x) || mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(+0) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) == 0)
++  CHECK;
++  if (!mpfr_number_p (x) || !(mpfr_number_p) (x) || !mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(+0) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) == 0 )
++  CHECK;
++  if (!mpfr_zero_p (x) || !(mpfr_zero_p) (x) || !mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_zero_p(+0) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) )
++  CHECK;
++  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) || mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(+0) gives non-zero\n");
+       exit (1);
+     }
++  CHECK;
+ 
+   /* Same for -0 */
+   mpfr_set_ui (x, 0, MPFR_RNDN);
+   mpfr_neg (x, x, MPFR_RNDN);
+-  if (mpfr_nan_p (x) || (mpfr_nan_p)(x))
++  if (mpfr_nan_p (x) || (mpfr_nan_p) (x) || mpfr_nan_p (ARG))
+     {
+       printf ("Error: mpfr_nan_p(-0) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_inf_p (x) || (mpfr_inf_p)(x) )
++  CHECK;
++  if (mpfr_inf_p (x) || (mpfr_inf_p) (x) || mpfr_inf_p (ARG))
+     {
+       printf ("Error: mpfr_inf_p(-0) gives non-zero\n");
+       exit (1);
+     }
+-  if (mpfr_number_p (x) == 0)
++  CHECK;
++  if (!mpfr_number_p (x) || !(mpfr_number_p) (x) || !mpfr_number_p (ARG))
+     {
+       printf ("Error: mpfr_number_p(-0) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_zero_p (x) == 0 )
++  CHECK;
++  if (!mpfr_zero_p (x) || !(mpfr_zero_p) (x) || !mpfr_zero_p (ARG))
+     {
+       printf ("Error: mpfr_zero_p(-0) gives zero\n");
+       exit (1);
+     }
+-  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) )
++  CHECK;
++  if (mpfr_regular_p (x) || (mpfr_regular_p) (x) || mpfr_regular_p (ARG))
+     {
+       printf ("Error: mpfr_regular_p(-0) gives non-zero\n");
+       exit (1);
+     }
++  CHECK;
++
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
+ 
+   mpfr_clear (x);
+ 
+diff -Naurd mpfr-4.1.0-a/tests/tset.c mpfr-4.1.0-b/tests/tset.c
+--- mpfr-4.1.0-a/tests/tset.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tset.c	2021-03-09 13:55:43.207158683 +0000
+@@ -207,7 +207,7 @@
+ static void
+ check_ternary_value (void)
+ {
+-  int p, q, rnd;
++  int k, p, q, rnd;
+   int inexact, cmp;
+   mpfr_t x, y;
+ 
+@@ -226,28 +226,45 @@
+             {
+               if (rnd == MPFR_RNDF) /* the test below makes no sense */
+                 continue;
+-              inexact = mpfr_set (y, x, (mpfr_rnd_t) rnd);
+-              cmp = mpfr_cmp (y, x);
+-              if (((inexact == 0) && (cmp != 0)) ||
+-                  ((inexact > 0) && (cmp <= 0)) ||
+-                  ((inexact < 0) && (cmp >= 0)))
+-                {
+-                  printf ("Wrong ternary value in mpfr_set for %s: expected"
+-                          " %d, got %d\n",
+-                          mpfr_print_rnd_mode ((mpfr_rnd_t) rnd), cmp,
+-                          inexact);
+-                  exit (1);
+-                }
+-              /* Test mpfr_set function too */
+-              inexact = (mpfr_set) (y, x, (mpfr_rnd_t) rnd);
+-              cmp = mpfr_cmp (y, x);
+-              if (((inexact == 0) && (cmp != 0)) ||
+-                  ((inexact > 0) && (cmp <= 0)) ||
+-                  ((inexact < 0) && (cmp >= 0)))
++              for (k = 0; k < 3; k++)
+                 {
+-                  printf ("Wrong ternary value in mpfr_set(2): expected %d,"
+-                          " got %d\n", cmp, inexact);
+-                  exit (1);
++                  int a = 0, b = 0, c = 0;
++
++                  switch (k)
++                    {
++                    case 0:
++                      inexact = mpfr_set (y, x, (mpfr_rnd_t) rnd);
++                      break;
++                    case 1:
++                      inexact = (mpfr_set) (y, x, (mpfr_rnd_t) rnd);
++                      break;
++                    case 2:
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++                      inexact = mpfr_set ((a++, VOIDP_CAST(y)),
++                                          (b++, VOIDP_CAST(x)),
++                                          (c++, (mpfr_rnd_t) rnd));
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
++                      MPFR_ASSERTN (a == 1);
++                      MPFR_ASSERTN (b == 1);
++                      MPFR_ASSERTN (c == 1);
++                      break;
++                    }
++                  cmp = mpfr_cmp (y, x);
++                  if (((inexact == 0) && (cmp != 0)) ||
++                      ((inexact > 0) && (cmp <= 0)) ||
++                      ((inexact < 0) && (cmp >= 0)))
++                    {
++                      printf ("Wrong ternary value in mpfr_set for %s (%d):"
++                              " expected %d, got %d\n",
++                              mpfr_print_rnd_mode ((mpfr_rnd_t) rnd),
++                              k, cmp, inexact);
++                      exit (1);
++                    }
+                 }
+             }
+         }
+diff -Naurd mpfr-4.1.0-a/tests/tset_exp.c mpfr-4.1.0-b/tests/tset_exp.c
+--- mpfr-4.1.0-a/tests/tset_exp.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tset_exp.c	2021-03-09 13:55:43.211158639 +0000
+@@ -28,6 +28,7 @@
+   mpfr_t x;
+   int ret;
+   mpfr_exp_t emin, emax, e;
++  int i = 0;
+ 
+   tests_start_mpfr ();
+ 
+@@ -63,6 +64,17 @@
+   e = (mpfr_get_exp) (x);
+   MPFR_ASSERTN (e == emin);
+ 
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic push
++#pragma GCC diagnostic ignored "-Wc++-compat"
++#endif
++  e = mpfr_get_exp ((i++, VOIDP_CAST(x)));
++#ifdef IGNORE_CPP_COMPAT
++#pragma GCC diagnostic pop
++#endif
++  MPFR_ASSERTN (e == emin);
++  MPFR_ASSERTN (i == 1);
++
+   ret = mpfr_set_exp (x, -1);
+   MPFR_ASSERTN (ret == 0 && mpfr_cmp_ui_2exp (x, 1, -2) == 0);
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-03-09 13:58:00.889650773 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-03-09 13:58:00.937650249 +0000
+@@ -0,0 +1 @@
++tset_sij
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-03-09 13:55:43.223158508 +0000
++++ mpfr-4.1.0-b/VERSION	2021-03-09 13:58:00.937650249 +0000
+@@ -1 +1 @@
+-4.1.0-p10
++4.1.0-p11
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-03-09 13:55:43.223158508 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-03-09 13:58:00.933650293 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p10"
++#define MPFR_VERSION_STRING "4.1.0-p11"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-03-09 13:55:43.223158508 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-03-09 13:58:00.933650293 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p10";
++  return "4.1.0-p11";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tset_si.c mpfr-4.1.0-b/tests/tset_si.c
+--- mpfr-4.1.0-a/tests/tset_si.c	2020-03-26 11:51:33.000000000 +0000
++++ mpfr-4.1.0-b/tests/tset_si.c	2021-03-09 13:58:00.917650467 +0000
+@@ -127,27 +127,29 @@
+              power of 2 is exact, unless underflow/overflow occurs.
+              The tests on the exponent below avoid integer overflows
+              (ep[i] may take extreme values). */
+-          e = mpfr_get_exp (x1);
+           mpfr_clear_flags ();
+-          if (j != 0 && ep[i] < __gmpfr_emin - e)  /* underflow */
++          if (j == 0)
++            goto zero;
++          e = MPFR_GET_EXP (x1);
++          if (ep[i] < __gmpfr_emin - e)  /* underflow */
+             {
+               mpfr_rnd_t r =
+                 (rnd == MPFR_RNDN &&
+-                 (ep[i] < __gmpfr_emin - mpfr_get_exp (y) - 1 ||
++                 (ep[i] < __gmpfr_emin - MPFR_GET_EXP (y) - 1 ||
+                   IS_POW2 (sign * j))) ?
+                 MPFR_RNDZ : (mpfr_rnd_t) rnd;
+               inex1 = mpfr_underflow (x1, r, sign);
+               flags1 = __gmpfr_flags;
+             }
+-          else if (j != 0 && ep[i] > __gmpfr_emax - e)  /* overflow */
++          else if (ep[i] > __gmpfr_emax - e)  /* overflow */
+             {
+               inex1 = mpfr_overflow (x1, (mpfr_rnd_t) rnd, sign);
+               flags1 = __gmpfr_flags;
+             }
+           else
+             {
+-              if (j != 0)
+-                mpfr_set_exp (x1, ep[i] + e);
++              mpfr_set_exp (x1, ep[i] + e);
++            zero:
+               flags1 = inex1 != 0 ? MPFR_FLAGS_INEXACT : 0;
+             }
+ 
+diff -Naurd mpfr-4.1.0-a/tests/tset_sj.c mpfr-4.1.0-b/tests/tset_sj.c
+--- mpfr-4.1.0-a/tests/tset_sj.c	2020-06-01 10:39:52.000000000 +0000
++++ mpfr-4.1.0-b/tests/tset_sj.c	2021-03-09 13:58:00.917650467 +0000
+@@ -225,27 +225,29 @@
+                  power of 2 is exact, unless underflow/overflow occurs.
+                  The tests on the exponent below avoid integer overflows
+                  (ep[i] may take extreme values). */
+-              e = mpfr_get_exp (x1);
+               mpfr_clear_flags ();
+-              if (j != 0 && ep[i] < __gmpfr_emin - e)  /* underflow */
++              if (j == 0)
++                goto zero;
++              e = MPFR_GET_EXP (x1);
++              if (ep[i] < __gmpfr_emin - e)  /* underflow */
+                 {
+                   mpfr_rnd_t r =
+                     (rnd == MPFR_RNDN &&
+-                     (ep[i] < __gmpfr_emin - mpfr_get_exp (y) - 1 ||
++                     (ep[i] < __gmpfr_emin - MPFR_GET_EXP (y) - 1 ||
+                       IS_POW2 (sign * j))) ?
+                     MPFR_RNDZ : (mpfr_rnd_t) rnd;
+                   inex1 = mpfr_underflow (x1, r, sign);
+                   flags1 = __gmpfr_flags;
+                 }
+-              else if (j != 0 && ep[i] > __gmpfr_emax - e)  /* overflow */
++              else if (ep[i] > __gmpfr_emax - e)  /* overflow */
+                 {
+                   inex1 = mpfr_overflow (x1, (mpfr_rnd_t) rnd, sign);
+                   flags1 = __gmpfr_flags;
+                 }
+               else
+                 {
+-                  if (j != 0)
+-                    mpfr_set_exp (x1, ep[i] + e);
++                  mpfr_set_exp (x1, ep[i] + e);
++                zero:
+                   flags1 = inex1 != 0 ? MPFR_FLAGS_INEXACT : 0;
+                 }
+             }
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-04-23 09:49:34.648281897 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-04-23 09:49:34.696281616 +0000
+@@ -0,0 +1 @@
++get_str_ndigits
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-03-09 13:58:00.937650249 +0000
++++ mpfr-4.1.0-b/VERSION	2021-04-23 09:49:34.696281616 +0000
+@@ -1 +1 @@
+-4.1.0-p11
++4.1.0-p12
+diff -Naurd mpfr-4.1.0-a/src/get_str.c mpfr-4.1.0-b/src/get_str.c
+--- mpfr-4.1.0-a/src/get_str.c	2020-06-18 17:17:18.000000000 +0000
++++ mpfr-4.1.0-b/src/get_str.c	2021-04-23 09:49:34.680281710 +0000
+@@ -2484,6 +2484,8 @@
+ size_t
+ mpfr_get_str_ndigits (int b, mpfr_prec_t p)
+ {
++  MPFR_SAVE_EXPO_DECL (expo);
++
+   MPFR_ASSERTN (2 <= b && b <= 62);
+ 
+   /* deal first with power of two bases, since even for those, mpfr_ceil_mul
+@@ -2497,17 +2499,26 @@
+       return 1 + (p + k - 2) / k;
+     }
+ 
++  MPFR_SAVE_EXPO_MARK (expo);
++
+   /* the value returned by mpfr_ceil_mul is guaranteed to be
+      1 + ceil(p*log(2)/log(b)) for p < 186564318007 (it returns one more
+      for p=186564318007 and b=7 or 49) */
+   MPFR_STAT_STATIC_ASSERT (MPFR_PREC_BITS >= 64 || MPFR_PREC_BITS <= 32);
++  if
+ #if MPFR_PREC_BITS >= 64
+   /* 64-bit numbers are supported by the C implementation, so that we can
+      use the large constant below. If MPFR_PREC_BITS <= 32, the condition
+      is always satisfied, so that we do not need any test. */
+-  if (MPFR_LIKELY (p < 186564318007))
++    (MPFR_LIKELY (p < 186564318007))
++#else
++    (1)
+ #endif
+-    return 1 + mpfr_ceil_mul (IS_POW2(b) ? p - 1 : p, b, 1);
++  {
++    size_t ret = 1 + mpfr_ceil_mul (IS_POW2(b) ? p - 1 : p, b, 1);
++    MPFR_SAVE_EXPO_FREE (expo);
++    return ret;
++  }
+ 
+   /* Now p is large and b is not a power of two. The code below works for any
+      value of p and b, as long as b is not a power of two. Indeed, in such a
+@@ -2541,6 +2552,8 @@
+         mpfr_clear (d);
+         mpfr_clear (u);
+       }
++
++    MPFR_SAVE_EXPO_FREE (expo);
+     return 1 + ret;
+   }
+ }
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-03-09 13:58:00.933650293 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-04-23 09:49:34.692281639 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p11"
++#define MPFR_VERSION_STRING "4.1.0-p12"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-03-09 13:58:00.933650293 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-04-23 09:49:34.696281616 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p11";
++  return "4.1.0-p12";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tget_str.c mpfr-4.1.0-b/tests/tget_str.c
+--- mpfr-4.1.0-a/tests/tget_str.c	2020-01-08 18:11:13.000000000 +0000
++++ mpfr-4.1.0-b/tests/tget_str.c	2021-04-23 09:49:34.680281710 +0000
+@@ -1311,6 +1311,33 @@
+   mpfr_clear (x);
+ }
+ 
++static void
++test_ndigits_aux (int b, mpfr_prec_t p, size_t expected_m)
++{
++  size_t m;
++  mpfr_exp_t old_emin, old_emax, e[] = { MPFR_EMIN_MIN, 0, MPFR_EMAX_MAX };
++  mpfr_flags_t flags;
++  int i;
++
++  old_emin = mpfr_get_emin ();
++  old_emax = mpfr_get_emax ();
++
++  i = randlimb () % (numberof (e) + 1);
++  if (i < numberof (e))
++    {
++      set_emin (e[i]);
++      set_emax (e[i]);
++    }
++
++  __gmpfr_flags = flags = randlimb () & MPFR_FLAGS_ALL;
++  m = mpfr_get_str_ndigits (b, p);
++  MPFR_ASSERTN (m == expected_m);
++  MPFR_ASSERTN (__gmpfr_flags == flags);
++
++  set_emin (old_emin);
++  set_emax (old_emax);
++}
++
+ /* test of mpfr_get_str_ndigits */
+ static void
+ test_ndigits (void)
+@@ -1319,61 +1346,61 @@
+ 
+   /* for b=2, we have 1 + ceil((p-1)*log(2)/log(b)) = p */
+   for (p = MPFR_PREC_MIN; p <= 1024; p++)
+-    MPFR_ASSERTN(mpfr_get_str_ndigits (2, p) == p);
++    test_ndigits_aux (2, p, p);
+ 
+   /* for b=4, we have 1 + ceil((p-1)*log(2)/log(b)) = 1 + ceil((p-1)/2)
+      = 1 + floor(p/2) */
+   for (p = MPFR_PREC_MIN; p <= 1024; p++)
+-    MPFR_ASSERTN(mpfr_get_str_ndigits (4, p) == 1 + (p / 2));
++    test_ndigits_aux (4, p, 1 + (p / 2));
+ 
+   /* for b=8, we have 1 + ceil((p-1)*log(2)/log(b)) = 1 + ceil((p-1)/3)
+      = 1 + floor((p+1)/3) */
+   for (p = MPFR_PREC_MIN; p <= 1024; p++)
+-    MPFR_ASSERTN(mpfr_get_str_ndigits (8, p) == 1 + ((p + 1) / 3));
++    test_ndigits_aux (8, p, 1 + ((p + 1) / 3));
+ 
+   /* for b=16, we have 1 + ceil((p-1)*log(2)/log(b)) = 1 + ceil((p-1)/4)
+      = 1 + floor((p+2)/4) */
+   for (p = MPFR_PREC_MIN; p <= 1024; p++)
+-    MPFR_ASSERTN(mpfr_get_str_ndigits (16, p) == 1 + ((p + 2) / 4));
++    test_ndigits_aux (16, p, 1 + ((p + 2) / 4));
+ 
+   /* for b=32, we have 1 + ceil((p-1)*log(2)/log(b)) = 1 + ceil((p-1)/5)
+      = 1 + floor((p+3)/5) */
+   for (p = MPFR_PREC_MIN; p <= 1024; p++)
+-    MPFR_ASSERTN(mpfr_get_str_ndigits (32, p) == 1 + ((p + 3) / 5));
++    test_ndigits_aux (32, p, 1 + ((p + 3) / 5));
+ 
+   /* error < 1e-3 */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (57, 35) == 8);
++  test_ndigits_aux (57, 35, 8);
+ 
+   /* error < 1e-4 */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (31, 649) == 133);
++  test_ndigits_aux (31, 649, 133);
+ 
+   /* error < 1e-5 */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (43, 5041) == 931);
++  test_ndigits_aux (43, 5041, 931);
+ 
+   /* error < 1e-6 */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (41, 17771) == 3319);
++  test_ndigits_aux (41, 17771, 3319);
+ 
+   /* 20th convergent of log(2)/log(3) */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 630138897) == 397573381);
++  test_ndigits_aux (3, 630138897, 397573381);
+ 
+ #if MPFR_PREC_BITS >= 64
+   /* 21st convergent of log(2)/log(3) */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 9809721694) == 6189245292);
++  test_ndigits_aux (3, 9809721694, 6189245292);
+ 
+   /* 22nd convergent of log(2)/log(3) */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 10439860591) == 6586818672);
++  test_ndigits_aux (3, 10439860591, 6586818672);
+ 
+   /* 23rd convergent of log(2)/log(3) */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 103768467013) == 65470613322);
++  test_ndigits_aux (3, 103768467013, 65470613322);
+ 
+   /* 24th convergent of log(2)/log(3) */
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 217976794617) == 137528045314);
++  test_ndigits_aux (3, 217976794617, 137528045314);
+ 
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 1193652440098) == 753110839882);
++  test_ndigits_aux (3, 1193652440098, 753110839882);
+ 
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (3, 683381996816440) == 431166034846569);
++  test_ndigits_aux (3, 683381996816440, 431166034846569);
+ 
+-  MPFR_ASSERTN(mpfr_get_str_ndigits (7, 186564318007) == 66455550933);
++  test_ndigits_aux (7, 186564318007, 66455550933);
+ #endif
+ }
+ 
+diff -Naurd mpfr-4.1.0-a/PATCHES mpfr-4.1.0-b/PATCHES
+--- mpfr-4.1.0-a/PATCHES	2021-05-17 16:09:00.574477185 +0000
++++ mpfr-4.1.0-b/PATCHES	2021-05-17 16:09:00.754476587 +0000
+@@ -0,0 +1 @@
++vasprintf-prec-zero
+diff -Naurd mpfr-4.1.0-a/VERSION mpfr-4.1.0-b/VERSION
+--- mpfr-4.1.0-a/VERSION	2021-04-23 09:49:34.696281616 +0000
++++ mpfr-4.1.0-b/VERSION	2021-05-17 16:09:00.754476587 +0000
+@@ -1 +1 @@
+-4.1.0-p12
++4.1.0-p13
+diff -Naurd mpfr-4.1.0-a/src/mpfr.h mpfr-4.1.0-b/src/mpfr.h
+--- mpfr-4.1.0-a/src/mpfr.h	2021-04-23 09:49:34.692281639 +0000
++++ mpfr-4.1.0-b/src/mpfr.h	2021-05-17 16:09:00.754476587 +0000
+@@ -27,7 +27,7 @@
+ #define MPFR_VERSION_MAJOR 4
+ #define MPFR_VERSION_MINOR 1
+ #define MPFR_VERSION_PATCHLEVEL 0
+-#define MPFR_VERSION_STRING "4.1.0-p12"
++#define MPFR_VERSION_STRING "4.1.0-p13"
+ 
+ /* User macros:
+    MPFR_USE_FILE:        Define it to make MPFR define functions dealing
+diff -Naurd mpfr-4.1.0-a/src/vasprintf.c mpfr-4.1.0-b/src/vasprintf.c
+--- mpfr-4.1.0-a/src/vasprintf.c	2021-02-11 12:48:27.354242922 +0000
++++ mpfr-4.1.0-b/src/vasprintf.c	2021-05-17 16:09:00.598477107 +0000
+@@ -635,7 +635,13 @@
+ static int
+ buffer_cat (struct string_buffer *b, const char *s, size_t len)
+ {
+-  MPFR_ASSERTD (len > 0);
++  /* If len == 0, which is possible when outputting an integer 0
++     (either a native one or mpfr_prec_t) with precision field = 0,
++     do nothing. This test is not necessary since the code below is
++     valid for len == 0, but this is safer, just in case. */
++  if (len == 0)
++    return 0;
++
+   MPFR_ASSERTD (len <= strlen (s));
+ 
+   if (buffer_incr_len (b, len))
+diff -Naurd mpfr-4.1.0-a/src/version.c mpfr-4.1.0-b/src/version.c
+--- mpfr-4.1.0-a/src/version.c	2021-04-23 09:49:34.696281616 +0000
++++ mpfr-4.1.0-b/src/version.c	2021-05-17 16:09:00.754476587 +0000
+@@ -25,5 +25,5 @@
+ const char *
+ mpfr_get_version (void)
+ {
+-  return "4.1.0-p12";
++  return "4.1.0-p13";
+ }
+diff -Naurd mpfr-4.1.0-a/tests/tsprintf.c mpfr-4.1.0-b/tests/tsprintf.c
+--- mpfr-4.1.0-a/tests/tsprintf.c	2020-04-08 22:39:35.000000000 +0000
++++ mpfr-4.1.0-b/tests/tsprintf.c	2021-05-17 16:09:00.598477107 +0000
+@@ -193,6 +193,10 @@
+   sprintf (buf, "%d", i);
+   check_vsprintf (buf, "%d", i);
+ 
++  check_vsprintf ("0", "%d", 0);
++  check_vsprintf ("", "%.d", 0);
++  check_vsprintf ("", "%.0d", 0);
++
+   sprintf (buf, "%e", d);
+   check_vsprintf (buf, "%e", d);
+ 
+@@ -227,9 +231,6 @@
+   mpfr_prec_t p = 128;
+   mpfr_t x, y, z;
+ 
+-  mpfr_init (z);
+-  mpfr_init2 (x, p);
+-
+   /* specifier 'P' for precision */
+   check_vsprintf ("128", "%Pu", p);
+   check_vsprintf ("00128", "%.5Pu", p);
+@@ -247,9 +248,19 @@
+   check_vsprintf ("0200:", "%0#+ -Po:", p);
+   check_vsprintf ("+0000128 :", "%0+ *.*Pd:", -9, 7, p);
+   check_vsprintf ("+12345   :", "%0+ -*.*Pd:", -9, -3, (mpfr_prec_t) 12345);
++  check_vsprintf ("0", "%Pu", (mpfr_prec_t) 0);
+   /* Do not add a test like "%05.1Pd" as MS Windows is buggy: when
+      a precision is given, the '0' flag must be ignored. */
+ 
++  /* specifier 'P' with precision field 0 */
++  check_vsprintf ("128", "%.Pu", p);
++  check_vsprintf ("128", "%.0Pd", p);
++  /* check_vsprintf ("", "%.Pu", (mpfr_prec_t) 0); */
++  check_vsprintf ("", "%.0Pd", (mpfr_prec_t) 0);
++
++  mpfr_init (z);
++  mpfr_init2 (x, 128);
++
+   /* special numbers */
+   mpfr_set_inf (x, 1);
+   check_sprintf (pinf_str, "%Re", x);



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