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Annotation of OpenXM_contrib/gmp/mpfr/tests/tset_z.c, Revision 1.1

1.1     ! maekawa     1: /* Test file for mpfr_set_z.
        !             2:
        !             3: Copyright (C) 1999 PolKA project, Inria Lorraine and Loria
        !             4:
        !             5: This file is part of the MPFR Library.
        !             6:
        !             7: The MPFR Library is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU Library General Public License as published by
        !             9: the Free Software Foundation; either version 2 of the License, or (at your
        !            10: option) any later version.
        !            11:
        !            12: The MPFR Library is distributed in the hope that it will be useful, but
        !            13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Library General Public License
        !            18: along with the MPFR Library; see the file COPYING.LIB.  If not, write to
        !            19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            20: MA 02111-1307, USA. */
        !            21:
        !            22: #include <stdlib.h>
        !            23: #include <unistd.h>
        !            24: #include "gmp.h"
        !            25: #include "mpfr.h"
        !            26:
        !            27: /* tset_z z rnd prec */
        !            28:
        !            29: void check(long i, unsigned char rnd) {
        !            30:   mpfr_t f; mpz_t z;
        !            31:
        !            32:   mpfr_init2(f, 53); mpz_init(z);
        !            33:   mpz_set_ui(z, i);
        !            34:   mpfr_set_z(f, z, rnd);
        !            35:   if ((long)mpfr_get_d(f) != i) {
        !            36:     printf("Error in mpfr_set_z for i=%ld rnd_mode=%d\n",i,rnd);
        !            37:     exit(1);
        !            38:   }
        !            39:   mpfr_clear(f); mpz_clear(z);
        !            40: }
        !            41:
        !            42: void check_large()
        !            43: {
        !            44:   mpz_t z; mpfr_t x,y;
        !            45:
        !            46:   mpz_init(z); mpfr_init2(x, 160); mpfr_init2(y, 160);
        !            47:   mpz_set_str(z, "77031627725494291259359895954016675357279104942148788042", 10);
        !            48:   mpfr_set_z(x, z, GMP_RNDN);
        !            49:   mpfr_set_str_raw(y, "0.1100100100001111110110101010001000100001011010001100001000110100110001001100011001100010100010111000000011011100000111001101000100101001000000100100111000001001E186");
        !            50:   if (mpfr_cmp(x,y)) {
        !            51:     fprintf(stderr, "Error in mpfr_set_z on large input\n"); exit(1);
        !            52:   }
        !            53:   mpz_clear(z); mpfr_clear(x); mpfr_clear(y);
        !            54: }
        !            55:
        !            56: int main(argc,argv) int argc; char *argv[];
        !            57: {
        !            58:   long j;
        !            59:
        !            60:   check_large();
        !            61:   srand(getpid());
        !            62:   for (j=0; j<1000000; j++)
        !            63:     check(lrand48(), rand()%4);
        !            64:   exit (0);
        !            65: }
        !            66: