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Annotation of OpenXM_contrib/gmp/tests/mpf/t-cmp_si.c, Revision 1.1.1.1

1.1       ohara       1: /* Test mpf_cmp_si.
                      2:
                      3: Copyright 2000, 2001 Free Software Foundation, Inc.
                      4:
                      5: This file is part of the GNU MP Library.
                      6:
                      7: The GNU MP 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 GNU MP 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 GNU MP 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 "gmp.h"
                     25: #include "gmp-impl.h"
                     26: #include "tests.h"
                     27:
                     28: #define SGN(x)       ((x) < 0 ? -1 : (x) == 0 ? 0 : 1)
                     29:
                     30: void
                     31: check_data (void)
                     32: {
                     33:   static const struct {
                     34:     int         a_base;
                     35:     const char  *a;
                     36:     const char  *b;
                     37:     int         want;
                     38:   } data[] = {
                     39:     { 10, "0",  "1", -1 },
                     40:     { 10, "0",  "0",  0 },
                     41:     { 10, "0", "-1",  1 },
                     42:
                     43:     { 10, "1",  "1", 0 },
                     44:     { 10, "1",  "0", 1 },
                     45:     { 10, "1", "-1", 1 },
                     46:
                     47:     { 10, "-1",  "1", -1 },
                     48:     { 10, "-1",  "0", -1 },
                     49:     { 10, "-1", "-1", 0 },
                     50:
                     51:     { 16,         "0", "-0x80000000",  1 },
                     52:     { 16,  "80000000", "-0x80000000",  1 },
                     53:     { 16,  "80000001", "-0x80000000",  1 },
                     54:     { 16, "-80000000", "-0x80000000",  0 },
                     55:     { 16, "-80000001", "-0x80000000", -1 },
                     56:
                     57:     { 16,                 "0", "-0x8000000000000000",  1 },
                     58:     { 16,  "8000000000000000", "-0x8000000000000000",  1 },
                     59:     { 16,  "8000000000000001", "-0x8000000000000000",  1 },
                     60:     { 16, "-8000000000000000", "-0x8000000000000000",  0 },
                     61:     { 16, "-8000000000000001", "-0x8000000000000000", -1 },
                     62:   };
                     63:
                     64:   mpf_t  a;
                     65:   mpz_t  bz;
                     66:   long   b;
                     67:   int    got;
                     68:   int    i;
                     69:
                     70:   mpf_init (a);
                     71:   mpz_init (bz);
                     72:   for (i = 0; i < numberof (data); i++)
                     73:     {
                     74:       mpf_set_str_or_abort (a, data[i].a, data[i].a_base);
                     75:       mpz_set_str_or_abort (bz, data[i].b, 0);
                     76:
                     77:       if (mpz_fits_slong_p (bz))
                     78:         {
                     79:           b = mpz_get_si (bz);
                     80:           got = mpf_cmp_si (a, b);
                     81:           if (SGN (got) != data[i].want)
                     82:             {
                     83:               printf ("mpf_cmp_si wrong on data[%d]\n", i);
                     84:               printf ("  a="); mpf_out_str (stdout, 10, 0, a);
                     85:               printf (" (%s)\n", data[i].a);
                     86:               printf ("  b=%ld (%s)\n", b, data[i].b);
                     87:               printf ("  got=%d\n", got);
                     88:               printf ("  want=%d\n", data[i].want);
                     89:               abort();
                     90:             }
                     91:         }
                     92:     }
                     93:
                     94:   mpf_clear (a);
                     95:   mpz_clear (bz);
                     96: }
                     97:
                     98: int
                     99: main (void)
                    100: {
                    101:   tests_start ();
                    102:
                    103:   check_data ();
                    104:
                    105:   tests_end ();
                    106:   exit (0);
                    107: }