--- /dev/null
+/* Test file for
+ mpfr_set_sj, mpfr_set_uj, mpfr_set_sj_2exp and mpfr_set_uj_2exp.
+
+Copyright 2004, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
+Contributed by the Arenaire and Cacao 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 2.1 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.LIB. If not, write to
+the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
+MA 02110-1301, USA. */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h" /* for a build within gmp */
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <limits.h>
+
+/* The ISO C99 standard specifies that in C++ implementations the
+ INTMAX_MAX, ... macros should only be defined if explicitly requested. */
+#if defined __cplusplus
+# define __STDC_LIMIT_MACROS
+# define __STDC_CONSTANT_MACROS
+#endif
+
+#if HAVE_INTTYPES_H
+# include <inttypes.h> /* for intmax_t */
+#else
+# if HAVE_STDINT_H
+# include <stdint.h>
+# endif
+#endif
+
+#include "mpfr-test.h"
+
+#ifndef _MPFR_H_HAVE_INTMAX_T
+int
+main (void)
+{
+ return 0;
+}
+#else
+
+#define ERROR(str) {printf("Error for "str"\n"); exit(1);}
+
+static int
+inexact_sign (int x)
+{
+ return (x < 0) ? -1 : (x > 0);
+}
+
+static void
+check_set_uj (mp_prec_t pmin, mp_prec_t pmax, int N)
+{
+ mpfr_t x, y;
+ mp_prec_t p;
+ int inex1, inex2, n;
+ mp_limb_t limb;
+
+ mpfr_inits2 (pmax, x, y, (mpfr_ptr) 0);
+
+ for ( p = pmin ; p < pmax ; p++)
+ {
+ mpfr_set_prec (x, p);
+ mpfr_set_prec (y, p);
+ for (n = 0 ; n < N ; n++)
+ {
+ /* mp_limb_t may be unsigned long long */
+ limb = (unsigned long) randlimb ();
+ inex1 = mpfr_set_uj (x, limb, GMP_RNDN);
+ inex2 = mpfr_set_ui (y, limb, GMP_RNDN);
+ if (mpfr_cmp (x, y))
+ {
+ printf ("ERROR for mpfr_set_uj and j=%lu and p=%lu\n",
+ (unsigned long) limb, p);
+ printf ("X="); mpfr_dump (x);
+ printf ("Y="); mpfr_dump (y);
+ exit (1);
+ }
+ if (inexact_sign (inex1) != inexact_sign (inex2))
+ {
+ printf ("ERROR for inexact(set_uj): j=%lu p=%lu\n"
+ "Inexact1= %d Inexact2= %d\n",
+ (unsigned long) limb, p, inex1, inex2);
+ exit (1);
+ }
+ }
+ }
+ /* Special case */
+ mpfr_set_prec (x, sizeof(uintmax_t)*CHAR_BIT);
+ inex1 = mpfr_set_uj (x, UINTMAX_MAX, GMP_RNDN);
+ if (inex1 != 0 || mpfr_sgn(x) <= 0)
+ ERROR ("inexact / UINTMAX_MAX");
+ inex1 = mpfr_add_ui (x, x, 1, GMP_RNDN);
+ if (inex1 != 0 || !mpfr_powerof2_raw (x)
+ || MPFR_EXP (x) != (sizeof(uintmax_t)*CHAR_BIT+1) )
+ ERROR ("power of 2");
+ mpfr_set_uj (x, 0, GMP_RNDN);
+ if (!MPFR_IS_ZERO (x))
+ ERROR ("Setting 0");
+
+ mpfr_clears (x, y, (mpfr_ptr) 0);
+}
+
+static void
+check_set_uj_2exp (void)
+{
+ mpfr_t x;
+ int inex;
+
+ mpfr_init2 (x, sizeof(uintmax_t)*CHAR_BIT);
+
+ inex = mpfr_set_uj_2exp (x, 1, 0, GMP_RNDN);
+ if (inex || mpfr_cmp_ui(x, 1))
+ ERROR("(1U,0)");
+
+ inex = mpfr_set_uj_2exp (x, 1024, -10, GMP_RNDN);
+ if (inex || mpfr_cmp_ui(x, 1))
+ ERROR("(1024U,-10)");
+
+ inex = mpfr_set_uj_2exp (x, 1024, 10, GMP_RNDN);
+ if (inex || mpfr_cmp_ui(x, 1024L * 1024L))
+ ERROR("(1024U,+10)");
+
+ inex = mpfr_set_uj_2exp (x, UINTMAX_MAX, 1000, GMP_RNDN);
+ inex |= mpfr_div_2ui (x, x, 1000, GMP_RNDN);
+ inex |= mpfr_add_ui (x, x, 1, GMP_RNDN);
+ if (inex || !mpfr_powerof2_raw (x)
+ || MPFR_EXP (x) != (sizeof(uintmax_t)*CHAR_BIT+1) )
+ ERROR("(UINTMAX_MAX)");
+
+ inex = mpfr_set_uj_2exp (x, UINTMAX_MAX, MPFR_EMAX_MAX-10, GMP_RNDN);
+ if (inex == 0 || !mpfr_inf_p (x))
+ ERROR ("Overflow");
+
+ inex = mpfr_set_uj_2exp (x, UINTMAX_MAX, MPFR_EMIN_MIN-1000, GMP_RNDN);
+ if (inex == 0 || !MPFR_IS_ZERO (x))
+ ERROR ("Underflow");
+
+ mpfr_clear (x);
+}
+
+static void
+check_set_sj (void)
+{
+ mpfr_t x;
+ int inex;
+
+ mpfr_init2 (x, sizeof(intmax_t)*CHAR_BIT-1);
+
+ inex = mpfr_set_sj (x, -INTMAX_MAX, GMP_RNDN);
+ inex |= mpfr_add_si (x, x, -1, GMP_RNDN);
+ if (inex || mpfr_sgn (x) >=0 || !mpfr_powerof2_raw (x)
+ || MPFR_EXP (x) != (sizeof(intmax_t)*CHAR_BIT) )
+ ERROR("set_sj (-INTMAX_MAX)");
+
+ inex = mpfr_set_sj (x, 1742, GMP_RNDN);
+ if (inex || mpfr_cmp_ui (x, 1742))
+ ERROR ("set_sj (1742)");
+
+ mpfr_clear (x);
+}
+
+static void
+check_set_sj_2exp (void)
+{
+ mpfr_t x;
+ int inex;
+
+ mpfr_init2 (x, sizeof(intmax_t)*CHAR_BIT-1);
+
+ inex = mpfr_set_sj_2exp (x, INTMAX_MIN, 1000, GMP_RNDN);
+ if (inex || mpfr_sgn (x) >=0 || !mpfr_powerof2_raw (x)
+ || MPFR_EXP (x) != (sizeof(intmax_t)*CHAR_BIT+1000) )
+ ERROR("set_sj_2exp (INTMAX_MIN)");
+
+ mpfr_clear (x);
+}
+
+int
+main (int argc, char *argv[])
+{
+ tests_start_mpfr ();
+
+ check_set_uj (2, 128, 50);
+ check_set_uj_2exp ();
+ check_set_sj ();
+ check_set_sj_2exp ();
+
+ tests_end_mpfr ();
+ return 0;
+}
+
+#endif
projects / msp430-gcc.git / blobdiff