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

1.1     ! ohara       1: /* Test file for mpfr_set_f.
        !             2:
        !             3: Copyright 1999, 2001, 2002 Free Software Foundation, Inc.
        !             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 Lesser General Public License as published by
        !             9: the Free Software Foundation; either version 2.1 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 Lesser General Public
        !            15: License for more details.
        !            16:
        !            17: You should have received a copy of the GNU Lesser 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 <stdio.h>
        !            23: #include <stdlib.h>
        !            24: #include <time.h>
        !            25: #include "gmp.h"
        !            26: #include "mpfr.h"
        !            27: #include "mpfr-test.h"
        !            28:
        !            29: int
        !            30: main (void)
        !            31: {
        !            32:   mpfr_t x, u;
        !            33:   mpf_t y, z;
        !            34:   unsigned long k, pr;
        !            35:
        !            36:   mpf_init(y);
        !            37:   mpf_init(z);
        !            38:
        !            39:   mpf_set_d (y, 0.0);
        !            40:
        !            41:   /* check prototype of mpfr_init_set_f */
        !            42:   mpfr_init_set_f (x, y, GMP_RNDN);
        !            43:   mpfr_set_prec (x, 100);
        !            44:   mpfr_set_f (x, y, GMP_RNDN);
        !            45:
        !            46:   SEED_RAND (time(NULL));
        !            47:   mpf_random2(y, 10, 0);
        !            48:   mpfr_set_f(x, y, LONG_RAND() & 3);
        !            49:
        !            50:   /* bug found by Jean-Pierre Merlet */
        !            51:   mpfr_set_prec(x, 256);
        !            52:   mpf_set_prec(y, 256);
        !            53:   mpfr_init2(u, 256);
        !            54:   mpfr_set_str(u,
        !            55:      "7.f10872b020c49ba5e353f7ced916872b020c49ba5e353f7ced916872b020c498@2",
        !            56:      16, GMP_RNDN);
        !            57:   mpf_set_str(y, "2033.033", 10);
        !            58:   mpfr_set_f(x, y, GMP_RNDN);
        !            59:   if (mpfr_cmp(x, u)) {
        !            60:     fprintf(stderr, "mpfr_set_f failed for y=2033.033\n"); exit(1);
        !            61:   }
        !            62:   mpf_set_str(y, "-2033.033", 10);
        !            63:   mpfr_set_f(x, y, GMP_RNDN);
        !            64:   mpfr_neg(u, u, GMP_RNDN);
        !            65:   if (mpfr_cmp(x, u)) {
        !            66:     fprintf(stderr, "mpfr_set_f failed for y=-2033.033\n"); exit(1);
        !            67:   }
        !            68:
        !            69:   mpfr_clear(u);
        !            70:   mpfr_clear(x);
        !            71:
        !            72:   for (k = 1; k <= 100000; k++)
        !            73:     {
        !            74:       pr = 2 + (LONG_RAND()&255);
        !            75:       mpf_set_prec (z, pr);
        !            76:       mpf_random2 (z, z->_mp_prec, 0);
        !            77:       mpfr_init2 (x, pr);
        !            78:       mpfr_set_f (x, z, 0);
        !            79:       mpfr_clear (x);
        !            80:     }
        !            81:   mpf_clear (y);
        !            82:   mpf_clear (z);
        !            83:
        !            84:   return 0;
        !            85: }