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+/* Test file for mpfr_fms.
+
+Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Free Software Foundation, Inc.
+Contributed by the AriC and Caramel projects, INRIA.
+
+This file is part of the GNU MPFR Library.
+
+The GNU MPFR Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 3 of the License, or (at your
+option) any later version.
+
+The GNU MPFR Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MPFR Library; see the file COPYING.LESSER. If not, see
+http://www.gnu.org/licenses/ or write to the Free Software Foundation, Inc.,
+51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "mpfr-test.h"
+
+/* When a * b is exact, the FMS is equivalent to the separate operations. */
+static void
+test_exact (void)
+{
+ const char *val[] =
+ { "@NaN@", "-@Inf@", "-2", "-1", "-0", "0", "1", "2", "@Inf@" };
+ int sv = sizeof (val) / sizeof (*val);
+ int i, j, k;
+ int rnd;
+ mpfr_t a, b, c, r1, r2;
+
+ mpfr_inits2 (8, a, b, c, r1, r2, (mpfr_ptr) 0);
+
+ for (i = 0; i < sv; i++)
+ for (j = 0; j < sv; j++)
+ for (k = 0; k < sv; k++)
+ RND_LOOP (rnd)
+ {
+ if (mpfr_set_str (a, val[i], 10, MPFR_RNDN) ||
+ mpfr_set_str (b, val[j], 10, MPFR_RNDN) ||
+ mpfr_set_str (c, val[k], 10, MPFR_RNDN) ||
+ mpfr_mul (r1, a, b, (mpfr_rnd_t) rnd) ||
+ mpfr_sub (r1, r1, c, (mpfr_rnd_t) rnd))
+ {
+ printf ("test_exact internal error for (%d,%d,%d,%d)\n",
+ i, j, k, rnd);
+ exit (1);
+ }
+ if (mpfr_fms (r2, a, b, c, (mpfr_rnd_t) rnd))
+ {
+ printf ("test_exact(%d,%d,%d,%d): mpfr_fms should be exact\n",
+ i, j, k, rnd);
+ exit (1);
+ }
+ if (MPFR_IS_NAN (r1))
+ {
+ if (MPFR_IS_NAN (r2))
+ continue;
+ printf ("test_exact(%d,%d,%d,%d): mpfr_fms should be NaN\n",
+ i, j, k, rnd);
+ exit (1);
+ }
+ if (mpfr_cmp (r1, r2) || MPFR_SIGN (r1) != MPFR_SIGN (r2))
+ {
+ printf ("test_exact(%d,%d,%d,%d):\nexpected ", i, j, k, rnd);
+ mpfr_out_str (stdout, 10, 0, r1, MPFR_RNDN);
+ printf ("\n got ");
+ mpfr_out_str (stdout, 10, 0, r2, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ }
+
+ mpfr_clears (a, b, c, r1, r2, (mpfr_ptr) 0);
+}
+
+static void
+test_overflow1 (void)
+{
+ mpfr_t x, y, z, r;
+ int inex;
+
+ mpfr_inits2 (8, x, y, z, r, (mpfr_ptr) 0);
+ MPFR_SET_POS (x);
+ mpfr_setmax (x, mpfr_get_emax ()); /* x = 2^emax - ulp */
+ mpfr_set_ui (y, 2, MPFR_RNDN); /* y = 2 */
+ mpfr_set (z, x, MPFR_RNDN); /* z = x = 2^emax - ulp */
+ mpfr_clear_flags ();
+ /* The intermediate multiplication x * y overflows, but x * y - z = x
+ is representable. */
+ inex = mpfr_fms (r, x, y, z, MPFR_RNDN);
+ if (inex || ! mpfr_equal_p (r, x))
+ {
+ printf ("Error in test_overflow1\nexpected ");
+ mpfr_out_str (stdout, 2, 0, x, MPFR_RNDN);
+ printf (" with inex = 0\n got ");
+ mpfr_out_str (stdout, 2, 0, r, MPFR_RNDN);
+ printf (" with inex = %d\n", inex);
+ exit (1);
+ }
+ if (mpfr_overflow_p ())
+ {
+ printf ("Error in test_overflow1: overflow flag set\n");
+ exit (1);
+ }
+ mpfr_clears (x, y, z, r, (mpfr_ptr) 0);
+}
+
+static void
+test_overflow2 (void)
+{
+ mpfr_t x, y, z, r;
+ int i, inex, rnd, err = 0;
+
+ mpfr_inits2 (8, x, y, z, r, (mpfr_ptr) 0);
+
+ MPFR_SET_POS (x);
+ mpfr_setmin (x, mpfr_get_emax ()); /* x = 0.1@emax */
+ mpfr_set_si (y, -2, MPFR_RNDN); /* y = -2 */
+ /* The intermediate multiplication x * y will overflow. */
+
+ for (i = -9; i <= 9; i++)
+ RND_LOOP (rnd)
+ {
+ int inf, overflow;
+
+ inf = rnd == MPFR_RNDN || rnd == MPFR_RNDD || rnd == MPFR_RNDA;
+ overflow = inf || i <= 0;
+
+ inex = mpfr_set_si_2exp (z, -i, mpfr_get_emin (), MPFR_RNDN);
+ MPFR_ASSERTN (inex == 0);
+
+ mpfr_clear_flags ();
+ /* One has: x * y = -1@emax exactly (but not representable). */
+ inex = mpfr_fms (r, x, y, z, (mpfr_rnd_t) rnd);
+ if (overflow ^ (mpfr_overflow_p () != 0))
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): wrong overflow"
+ " flag (should be %d)\n", i,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd), overflow);
+ err = 1;
+ }
+ if (mpfr_nanflag_p ())
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): NaN flag should"
+ " not be set\n", i, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ if (mpfr_nan_p (r))
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): got NaN\n",
+ i, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ else if (MPFR_SIGN (r) >= 0)
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): wrong sign "
+ "(+ instead of -)\n", i,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ else if (inf && ! mpfr_inf_p (r))
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): expected -Inf,"
+ " got\n", i, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ mpfr_dump (r);
+ err = 1;
+ }
+ else if (!inf && (mpfr_inf_p (r) ||
+ (mpfr_nextbelow (r), ! mpfr_inf_p (r))))
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): expected -MAX,"
+ " got\n", i, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ mpfr_dump (r);
+ err = 1;
+ }
+ if (inf ? inex >= 0 : inex <= 0)
+ {
+ printf ("Error in test_overflow2 (i = %d, %s): wrong inexact"
+ " flag (got %d)\n", i,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd), inex);
+ err = 1;
+ }
+
+ }
+
+ if (err)
+ exit (1);
+ mpfr_clears (x, y, z, r, (mpfr_ptr) 0);
+}
+
+static void
+test_underflow1 (void)
+{
+ mpfr_t x, y, z, r;
+ int inex, signy, signz, rnd, err = 0;
+
+ mpfr_inits2 (8, x, y, z, r, (mpfr_ptr) 0);
+
+ MPFR_SET_POS (x);
+ mpfr_setmin (x, mpfr_get_emin ()); /* x = 0.1@emin */
+
+ for (signy = -1; signy <= 1; signy += 2)
+ {
+ mpfr_set_si_2exp (y, signy, -1, MPFR_RNDN); /* |y| = 1/2 */
+ for (signz = -3; signz <= 3; signz += 2)
+ {
+ RND_LOOP (rnd)
+ {
+ mpfr_set_si (z, signz, MPFR_RNDN);
+ if (ABS (signz) != 1)
+ mpfr_setmax (z, mpfr_get_emax ());
+ /* |z| = 1 or 2^emax - ulp */
+ mpfr_clear_flags ();
+ inex = mpfr_fms (r, x, y, z, (mpfr_rnd_t) rnd);
+#define ERRTU1 "Error in test_underflow1 (signy = %d, signz = %d, %s)\n "
+ if (mpfr_nanflag_p ())
+ {
+ printf (ERRTU1 "NaN flag is set\n", signy, signz,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ mpfr_neg (z, z, MPFR_RNDN);
+ if (signy < 0 && MPFR_IS_LIKE_RNDD(rnd, -signz))
+ mpfr_nextbelow (z);
+ if (signy > 0 && MPFR_IS_LIKE_RNDU(rnd, -signz))
+ mpfr_nextabove (z);
+ if ((mpfr_overflow_p () != 0) ^ (mpfr_inf_p (z) != 0))
+ {
+ printf (ERRTU1 "wrong overflow flag\n", signy, signz,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ if (mpfr_underflow_p ())
+ {
+ printf (ERRTU1 "underflow flag is set\n", signy, signz,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ err = 1;
+ }
+ if (! mpfr_equal_p (r, z))
+ {
+ printf (ERRTU1 "got ", signy, signz,
+ mpfr_print_rnd_mode ((mpfr_rnd_t) rnd));
+ mpfr_print_binary (r);
+ printf (" instead of ");
+ mpfr_print_binary (z);
+ printf ("\n");
+ err = 1;
+ }
+ if (inex >= 0 && (rnd == MPFR_RNDD ||
+ (rnd == MPFR_RNDZ && signz < 0) ||
+ (rnd == MPFR_RNDN && signy > 0)))
+ {
+ printf (ERRTU1 "ternary value = %d instead of < 0\n",
+ signy, signz, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd),
+ inex);
+ err = 1;
+ }
+ if (inex <= 0 && (rnd == MPFR_RNDU ||
+ (rnd == MPFR_RNDZ && signz > 0) ||
+ (rnd == MPFR_RNDN && signy < 0)))
+ {
+ printf (ERRTU1 "ternary value = %d instead of > 0\n",
+ signy, signz, mpfr_print_rnd_mode ((mpfr_rnd_t) rnd),
+ inex);
+ err = 1;
+ }
+ }
+ }
+ }
+
+ if (err)
+ exit (1);
+ mpfr_clears (x, y, z, r, (mpfr_ptr) 0);
+}
+
+static void
+test_underflow2 (void)
+{
+ mpfr_t x, y, z, r;
+ int b, i, inex, same, err = 0;
+
+ mpfr_inits2 (32, x, y, z, r, (mpfr_ptr) 0);
+
+ mpfr_set_si_2exp (z, -1, mpfr_get_emin (), MPFR_RNDN); /* z = -2^emin */
+ mpfr_set_si_2exp (x, 1, mpfr_get_emin (), MPFR_RNDN); /* x = 2^emin */
+
+ for (b = 0; b <= 1; b++)
+ {
+ for (i = 15; i <= 17; i++)
+ {
+ mpfr_set_si_2exp (y, i, -4 - MPFR_PREC (z), MPFR_RNDN);
+ /* z = -1.000...00b
+ * xy = 01111
+ * or 10000
+ * or 10001
+ */
+ mpfr_clear_flags ();
+ inex = mpfr_fms (r, x, y, z, MPFR_RNDN);
+#define ERRTU2 "Error in test_underflow2 (b = %d, i = %d)\n "
+ if (__gmpfr_flags != MPFR_FLAGS_INEXACT)
+ {
+ printf (ERRTU2 "flags = %u instead of %u\n", b, i,
+ __gmpfr_flags, (unsigned int) MPFR_FLAGS_INEXACT);
+ err = 1;
+ }
+ same = i == 15 || (i == 16 && b == 0);
+ if (same ? (inex >= 0) : (inex <= 0))
+ {
+ printf (ERRTU2 "incorrect ternary value (%d instead of %c 0)\n",
+ b, i, inex, same ? '<' : '>');
+ err = 1;
+ }
+ mpfr_neg (y, z, MPFR_RNDN);
+ if (!same)
+ mpfr_nextabove (y);
+ if (! mpfr_equal_p (r, y))
+ {
+ printf (ERRTU2 "expected ", b, i);
+ mpfr_dump (y);
+ printf (" got ");
+ mpfr_dump (r);
+ err = 1;
+ }
+ }
+ mpfr_nextbelow (z);
+ }
+
+ if (err)
+ exit (1);
+ mpfr_clears (x, y, z, r, (mpfr_ptr) 0);
+}
+
+int
+main (int argc, char *argv[])
+{
+ mpfr_t x, y, z, s;
+ MPFR_SAVE_EXPO_DECL (expo);
+
+ tests_start_mpfr ();
+
+ mpfr_init (x);
+ mpfr_init (s);
+ mpfr_init (y);
+ mpfr_init (z);
+
+ /* check special cases */
+ mpfr_set_prec (x, 2);
+ mpfr_set_prec (y, 2);
+ mpfr_set_prec (z, 2);
+ mpfr_set_prec (s, 2);
+ mpfr_set_str (x, "-0.75", 10, MPFR_RNDN);
+ mpfr_set_str (y, "0.5", 10, MPFR_RNDN);
+ mpfr_set_str (z, "-0.375", 10, MPFR_RNDN);
+ mpfr_fms (s, x, y, z, MPFR_RNDU); /* result is 0 */
+ if (mpfr_cmp_ui(s, 0))
+ {
+ printf("Error: -0.75 * 0.5 - -0.375 should be equal to 0 for prec=2\n");
+ exit(1);
+ }
+
+ mpfr_set_prec (x, 27);
+ mpfr_set_prec (y, 27);
+ mpfr_set_prec (z, 27);
+ mpfr_set_prec (s, 27);
+ mpfr_set_str_binary (x, "1.11111111111111111111111111e-1");
+ mpfr_set (y, x, MPFR_RNDN);
+ mpfr_set_str_binary (z, "1.00011110100011001011001001e-1");
+ if (mpfr_fms (s, x, y, z, MPFR_RNDN) >= 0)
+ {
+ printf ("Wrong inexact flag for x=y=1-2^(-27)\n");
+ exit (1);
+ }
+
+ mpfr_set_nan (x);
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in x=NAN does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_nan (y);
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p(s))
+ {
+ printf ("evaluation of function in y=NAN does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_nan (z);
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (x, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in z=NAN does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_set_inf (y, 1);
+ mpfr_set_inf (z, -1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) < 0)
+ {
+ printf ("Error for (+inf) * (+inf) - (-inf)\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, -1);
+ mpfr_set_inf (y, -1);
+ mpfr_set_inf (z, -1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) < 0)
+ {
+ printf ("Error for (-inf) * (-inf) - (-inf)\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_set_inf (y, -1);
+ mpfr_set_inf (z, 1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) > 0)
+ {
+ printf ("Error for (+inf) * (-inf) - (+inf)\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, -1);
+ mpfr_set_inf (y, 1);
+ mpfr_set_inf (z, 1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) > 0)
+ {
+ printf ("Error for (-inf) * (+inf) - (+inf)\n");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_set_ui (y, 0, MPFR_RNDN);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in x=INF y=0 does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_inf (y, 1);
+ mpfr_set_ui (x, 0, MPFR_RNDN);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in x=0 y=INF does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_urandomb (y, RANDS); /* always positive */
+ mpfr_set_inf (z, 1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in x=INF y>0 z=INF does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_inf (y, 1);
+ mpfr_urandomb (x, RANDS);
+ mpfr_set_inf (z, 1);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_nan_p (s))
+ {
+ printf ("evaluation of function in x>0 y=INF z=INF does not return NAN");
+ exit (1);
+ }
+
+ mpfr_set_inf (x, 1);
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) < 0)
+ {
+ printf ("evaluation of function in x=INF does not return INF");
+ exit (1);
+ }
+
+ mpfr_set_inf (y, 1);
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) < 0)
+ {
+ printf ("evaluation of function in y=INF does not return INF");
+ exit (1);
+ }
+
+ mpfr_set_inf (z, -1);
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (y, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ if (!mpfr_inf_p (s) || mpfr_sgn (s) < 0)
+ {
+ printf ("evaluation of function in z=-INF does not return INF");
+ exit (1);
+ }
+
+ mpfr_set_ui (x, 0, MPFR_RNDN);
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ mpfr_neg (z, z, MPFR_RNDN);
+ if (mpfr_cmp (s, z))
+ {
+ printf ("evaluation of function in x=0 does not return -z\n");
+ exit (1);
+ }
+
+ mpfr_set_ui (y, 0, MPFR_RNDN);
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (z, RANDS);
+ mpfr_fms (s, x, y, z, MPFR_RNDN);
+ mpfr_neg (z, z, MPFR_RNDN);
+ if (mpfr_cmp (s, z))
+ {
+ printf ("evaluation of function in y=0 does not return -z\n");
+ exit (1);
+ }
+
+ {
+ mpfr_prec_t prec;
+ mpfr_t t, slong;
+ mpfr_rnd_t rnd;
+ int inexact, compare;
+ unsigned int n;
+
+ mpfr_prec_t p0=2, p1=200;
+ unsigned int N=200;
+
+ mpfr_init (t);
+ mpfr_init (slong);
+
+ /* generic test */
+ for (prec = p0; prec <= p1; prec++)
+ {
+ mpfr_set_prec (x, prec);
+ mpfr_set_prec (y, prec);
+ mpfr_set_prec (z, prec);
+ mpfr_set_prec (s, prec);
+ mpfr_set_prec (t, prec);
+
+ for (n=0; n<N; n++)
+ {
+ mpfr_urandomb (x, RANDS);
+ mpfr_urandomb (y, RANDS);
+ mpfr_urandomb (z, RANDS);
+
+ if (randlimb () % 2)
+ mpfr_neg (x, x, MPFR_RNDN);
+ if (randlimb () % 2)
+ mpfr_neg (y, y, MPFR_RNDN);
+ if (randlimb () % 2)
+ mpfr_neg (z, z, MPFR_RNDN);
+
+ rnd = RND_RAND ();
+ mpfr_set_prec (slong, 2 * prec);
+ if (mpfr_mul (slong, x, y, rnd))
+ {
+ printf ("x*y should be exact\n");
+ exit (1);
+ }
+ compare = mpfr_sub (t, slong, z, rnd);
+ inexact = mpfr_fms (s, x, y, z, rnd);
+ if (mpfr_cmp (s, t))
+ {
+ printf ("results differ for x=");
+ mpfr_out_str (stdout, 2, prec, x, MPFR_RNDN);
+ printf (" y=");
+ mpfr_out_str (stdout, 2, prec, y, MPFR_RNDN);
+ printf (" z=");
+ mpfr_out_str (stdout, 2, prec, z, MPFR_RNDN);
+ printf (" prec=%u rnd_mode=%s\n", (unsigned int) prec,
+ mpfr_print_rnd_mode (rnd));
+ printf ("got ");
+ mpfr_out_str (stdout, 2, prec, s, MPFR_RNDN);
+ puts ("");
+ printf ("expected ");
+ mpfr_out_str (stdout, 2, prec, t, MPFR_RNDN);
+ puts ("");
+ printf ("approx ");
+ mpfr_print_binary (slong);
+ puts ("");
+ exit (1);
+ }
+ if (((inexact == 0) && (compare != 0)) ||
+ ((inexact < 0) && (compare >= 0)) ||
+ ((inexact > 0) && (compare <= 0)))
+ {
+ printf ("Wrong inexact flag for rnd=%s: expected %d, got %d\n",
+ mpfr_print_rnd_mode (rnd), compare, inexact);
+ printf (" x="); mpfr_out_str (stdout, 2, 0, x, MPFR_RNDN);
+ printf (" y="); mpfr_out_str (stdout, 2, 0, y, MPFR_RNDN);
+ printf (" z="); mpfr_out_str (stdout, 2, 0, z, MPFR_RNDN);
+ printf (" s="); mpfr_out_str (stdout, 2, 0, s, MPFR_RNDN);
+ printf ("\n");
+ exit (1);
+ }
+ }
+ }
+ mpfr_clear (t);
+ mpfr_clear (slong);
+
+ }
+ mpfr_clear (x);
+ mpfr_clear (y);
+ mpfr_clear (z);
+ mpfr_clear (s);
+
+ test_exact ();
+
+ MPFR_SAVE_EXPO_MARK (expo);
+ test_overflow1 ();
+ test_overflow2 ();
+ test_underflow1 ();
+ test_underflow2 ();
+ MPFR_SAVE_EXPO_FREE (expo);
+
+ tests_end_mpfr ();
+ return 0;
+}