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Diffstat (limited to 'mpfr/tests/tset_sj.c')
| -rw-r--r-- | mpfr/tests/tset_sj.c | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/mpfr/tests/tset_sj.c b/mpfr/tests/tset_sj.c new file mode 100644 index 0000000000..ac103b3b85 --- /dev/null +++ b/mpfr/tests/tset_sj.c @@ -0,0 +1,195 @@ +/* Test file for + mpfr_set_sj, mpfr_set_uj, mpfr_set_sj_2exp and mpfr_set_uj_2exp. + +Copyright 2004, 2006-2016 Free Software Foundation, Inc. +Contributed by the AriC and Caramba 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. */ + +#ifdef HAVE_CONFIG_H +# include "config.h" /* for a build within gmp */ +#endif + +#include <stdio.h> +#include <stdlib.h> +#include <limits.h> + +#include "mpfr-intmax.h" +#include "mpfr-test.h" + +#ifndef _MPFR_H_HAVE_INTMAX_T + +int +main (void) +{ + return 77; +} + +#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 (mpfr_prec_t pmin, mpfr_prec_t pmax, int N) +{ + mpfr_t x, y; + mpfr_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, MPFR_RNDN); + inex2 = mpfr_set_ui (y, limb, MPFR_RNDN); + if (mpfr_cmp (x, y)) + { + printf ("ERROR for mpfr_set_uj and j=%lu and p=%lu\n", + (unsigned long) limb, (unsigned long) 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, (unsigned long) p, inex1, inex2); + exit (1); + } + } + } + /* Special case */ + mpfr_set_prec (x, sizeof(uintmax_t)*CHAR_BIT); + inex1 = mpfr_set_uj (x, MPFR_UINTMAX_MAX, MPFR_RNDN); + if (inex1 != 0 || mpfr_sgn(x) <= 0) + ERROR ("inexact / UINTMAX_MAX"); + inex1 = mpfr_add_ui (x, x, 1, MPFR_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, MPFR_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, MPFR_RNDN); + if (inex || mpfr_cmp_ui(x, 1)) + ERROR("(1U,0)"); + + inex = mpfr_set_uj_2exp (x, 1024, -10, MPFR_RNDN); + if (inex || mpfr_cmp_ui(x, 1)) + ERROR("(1024U,-10)"); + + inex = mpfr_set_uj_2exp (x, 1024, 10, MPFR_RNDN); + if (inex || mpfr_cmp_ui(x, 1024L * 1024L)) + ERROR("(1024U,+10)"); + + inex = mpfr_set_uj_2exp (x, MPFR_UINTMAX_MAX, 1000, MPFR_RNDN); + inex |= mpfr_div_2ui (x, x, 1000, MPFR_RNDN); + inex |= mpfr_add_ui (x, x, 1, MPFR_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, MPFR_UINTMAX_MAX, MPFR_EMAX_MAX-10, MPFR_RNDN); + if (inex == 0 || !mpfr_inf_p (x)) + ERROR ("Overflow"); + + inex = mpfr_set_uj_2exp (x, MPFR_UINTMAX_MAX, MPFR_EMIN_MIN-1000, MPFR_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, -MPFR_INTMAX_MAX, MPFR_RNDN); + inex |= mpfr_add_si (x, x, -1, MPFR_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, MPFR_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, MPFR_INTMAX_MIN, 1000, MPFR_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 |