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-impl.h"
      24  #include "longlong.h"
      25  #include "tests.h"
      26  
      27  
      28  void
      29  check_data (void)
      30  {
      31  #define M  MP_LIMB_T_MAX
      32  
      33    static const struct {
      34      mp_limb_t  want_dh,want_dl, mh,ml, sh,sl;
      35    } data[] = {
      36      { 0,0,  0,0,  0,0 },
      37      { 0,0,  0,1,  0,1 },
      38      { 0,0,  1,2,  1,2 },
      39  
      40      { 0,1,  0,2,  0,1 },
      41      { 0,M,  1,0,  0,1 },
      42      { M,M,  0,0,  0,1 },
      43  
      44      { M,M,  0,M-1,  0,M },
      45      { 0,0,  0,M-1,  0,M-1 },
      46      { 0,1,  0,M-1,  0,M-2 },
      47    };
      48    int  i;
      49    mp_limb_t  got_dh, got_dl;
      50  
      51    for (i = 0; i < numberof (data); i++)
      52      {
      53        sub_ddmmss (got_dh,got_dl, data[i].mh,data[i].ml, data[i].sh,data[i].sl);
      54        if (got_dh != data[i].want_dh || got_dl != data[i].want_dl)
      55          {
      56            printf ("check_data wrong at data[%d]\n", i);
      57            mp_limb_trace ("  mh", data[i].mh);
      58            mp_limb_trace ("  ml", data[i].ml);
      59            mp_limb_trace ("  sh", data[i].sh);
      60            mp_limb_trace ("  sl", data[i].sl);
      61            mp_limb_trace ("  want dh", data[i].want_dh);
      62            mp_limb_trace ("  want dl", data[i].want_dl);
      63            mp_limb_trace ("  got dh ", got_dh);
      64            mp_limb_trace ("  got dl ", got_dl);
      65            abort ();
      66          }
      67      }
      68  }
      69  
      70  void
      71  check_random (void)
      72  {
      73    mp_limb_t  want_dh,want_dl, got_dh,got_dl, mh,ml, sh,sl;
      74    int  i;
      75  
      76    for (i = 0; i < 20; i++)
      77      {
      78        mh = urandom ();
      79        ml = urandom ();
      80        sh = urandom ();
      81        sl = urandom ();
      82  
      83        refmpn_sub_ddmmss (&want_dh,&want_dl, mh,ml, sh,sl);
      84  
      85        sub_ddmmss (got_dh,got_dl, mh,ml, sh,sl);
      86  
      87        if (got_dh != want_dh || got_dl != want_dl)
      88          {
      89            printf ("check_data wrong at data[%d]\n", i);
      90            mp_limb_trace ("  mh", mh);
      91            mp_limb_trace ("  ml", ml);
      92            mp_limb_trace ("  sh", sh);
      93            mp_limb_trace ("  sl", sl);
      94            mp_limb_trace ("  want dh", want_dh);
      95            mp_limb_trace ("  want dl", want_dl);
      96            mp_limb_trace ("  got dh ", got_dh);
      97            mp_limb_trace ("  got dl ", got_dl);
      98            abort ();
      99          }
     100      }
     101  }
     102  
     103  int
     104  main (void)
     105  {
     106    tests_start ();
     107    mp_trace_base = -16;
     108  
     109    check_data ();
     110    check_random ();
     111  
     112    tests_end ();
     113    exit (0);
     114  }