github.com/aergoio/aergo@v1.3.1/libtool/src/gmp-6.1.2/tests/t-sub.c (about)

     1  /* Test sub_ddmmss.
     2  
     3  Copyright 2004 Free Software Foundation, Inc.
     4  
     5  This file is part of the GNU MP Library test suite.
     6  
     7  The GNU MP Library test suite is free software; you can redistribute it
     8  and/or modify it under the terms of the GNU General Public License as
     9  published by the Free Software Foundation; either version 3 of the License,
    10  or (at your option) any later version.
    11  
    12  The GNU MP Library test suite is distributed in the hope that it will be
    13  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
    14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
    15  Public License for more details.
    16  
    17  You should have received a copy of the GNU General Public License along with
    18  the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
    19  
    20  #include <stdio.h>
    21  #include <stdlib.h>
    22  
    23  #include "gmp.h"
    24  #include "gmp-impl.h"
    25  #include "longlong.h"
    26  #include "tests.h"
    27  
    28  
    29  void
    30  check_data (void)
    31  {
    32  #define M  MP_LIMB_T_MAX
    33  
    34    static const struct {
    35      mp_limb_t  want_dh,want_dl, mh,ml, sh,sl;
    36    } data[] = {
    37      { 0,0,  0,0,  0,0 },
    38      { 0,0,  0,1,  0,1 },
    39      { 0,0,  1,2,  1,2 },
    40  
    41      { 0,1,  0,2,  0,1 },
    42      { 0,M,  1,0,  0,1 },
    43      { M,M,  0,0,  0,1 },
    44  
    45      { M,M,  0,M-1,  0,M },
    46      { 0,0,  0,M-1,  0,M-1 },
    47      { 0,1,  0,M-1,  0,M-2 },
    48    };
    49    int  i;
    50    mp_limb_t  got_dh, got_dl;
    51  
    52    for (i = 0; i < numberof (data); i++)
    53      {
    54        sub_ddmmss (got_dh,got_dl, data[i].mh,data[i].ml, data[i].sh,data[i].sl);
    55        if (got_dh != data[i].want_dh || got_dl != data[i].want_dl)
    56          {
    57            printf ("check_data wrong at data[%d]\n", i);
    58            mp_limb_trace ("  mh", data[i].mh);
    59            mp_limb_trace ("  ml", data[i].ml);
    60            mp_limb_trace ("  sh", data[i].sh);
    61            mp_limb_trace ("  sl", data[i].sl);
    62            mp_limb_trace ("  want dh", data[i].want_dh);
    63            mp_limb_trace ("  want dl", data[i].want_dl);
    64            mp_limb_trace ("  got dh ", got_dh);
    65            mp_limb_trace ("  got dl ", got_dl);
    66            abort ();
    67          }
    68      }
    69  }
    70  
    71  void
    72  check_random (void)
    73  {
    74    mp_limb_t  want_dh,want_dl, got_dh,got_dl, mh,ml, sh,sl;
    75    int  i;
    76  
    77    for (i = 0; i < 20; i++)
    78      {
    79        mh = urandom ();
    80        ml = urandom ();
    81        sh = urandom ();
    82        sl = urandom ();
    83  
    84        refmpn_sub_ddmmss (&want_dh,&want_dl, mh,ml, sh,sl);
    85  
    86        sub_ddmmss (got_dh,got_dl, mh,ml, sh,sl);
    87  
    88        if (got_dh != want_dh || got_dl != want_dl)
    89          {
    90            printf ("check_data wrong at data[%d]\n", i);
    91            mp_limb_trace ("  mh", mh);
    92            mp_limb_trace ("  ml", ml);
    93            mp_limb_trace ("  sh", sh);
    94            mp_limb_trace ("  sl", sl);
    95            mp_limb_trace ("  want dh", want_dh);
    96            mp_limb_trace ("  want dl", want_dl);
    97            mp_limb_trace ("  got dh ", got_dh);
    98            mp_limb_trace ("  got dl ", got_dl);
    99            abort ();
   100          }
   101      }
   102  }
   103  
   104  int
   105  main (void)
   106  {
   107    tests_start ();
   108    mp_trace_base = -16;
   109  
   110    check_data ();
   111    check_random ();
   112  
   113    tests_end ();
   114    exit (0);
   115  }