git.distorted.org.uk Git - u/mdw/catacomb/blob - mpint.c

   1 /* -*-c-*-
   2  *
   3  * $Id: mpint.c,v 1.1 1999/11/25 11:38:31 mdw Exp $
   4  *
   5  * Conversion between MPs and standard C integers
   6  *
   7  * (c) 1999 Straylight/Edgeware
   8  */
   9
  10 /*----- Licensing notice --------------------------------------------------*
  11  *
  12  * This file is part of Catacomb.
  13  *
  14  * Catacomb is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU Library General Public License as
  16  * published by the Free Software Foundation; either version 2 of the
  17  * License, or (at your option) any later version.
  18  *
  19  * Catacomb is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU Library General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU Library General Public
  25  * License along with Catacomb; if not, write to the Free
  26  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  27  * MA 02111-1307, USA.
  28  */
  29
  30 /*----- Revision history --------------------------------------------------*
  31  *
  32  * $Log: mpint.c,v $
  33  * Revision 1.1  1999/11/25 11:38:31  mdw
  34  * Support for conversions between MPs and C integers.
  35  *
  36  */
  37
  38 /*----- Header files ------------------------------------------------------*/
  39
  40 #include "mpint.h"
  41
  42 /*----- Main code ---------------------------------------------------------*/
  43
  44 /* --- Conversion from C integers --- */
  45
  46 #define FROM(name, type)                                                \
  47   mp *mp_from##name(mp *d, type i) {                                    \
  48     MP_FROMINT(d, type, i);                                             \
  49     return (d);                                                         \
  50   }
  51
  52 FROM(short, short)
  53 FROM(ushort, unsigned short)
  54 FROM(int, int)
  55 FROM(uint, unsigned)
  56 FROM(long, long)
  57 FROM(ulong, unsigned long)
  58
  59 #undef FROM
  60
  61 /* --- Conversion to C integers --- */
  62
  63 #define TO(name, type, max)                                             \
  64   type mp_to##name(const mp *m)                                         \
  65   {                                                                     \
  66     type i;                                                             \
  67     MP_TOINT(m, type, max, i);                                          \
  68     return (i);                                                         \
  69   }
  70
  71 TO(short, short, SHRT_MAX)
  72 TO(ushort, unsigned short, USHRT_MAX)
  73 TO(int, int, INT_MAX)
  74 TO(uint, unsigned, UINT_MAX)
  75 TO(long, long, LONG_MAX)
  76 TO(ulong, unsigned long, ULONG_MAX)
  77
  78 #undef TO
  79
  80 /*----- Test rig ----------------------------------------------------------*/
  81
  82 #ifdef TEST_RIG
  83
  84 #include <mLib/testrig.h>
  85
  86 static int fromuint(dstr *v)
  87 {
  88   unsigned i = *(unsigned *)v[0].buf;
  89   mp *m = *(mp **)v[1].buf;
  90   mp *d = mp_fromuint(MP_NEW, i);
  91   int ok = 1;
  92
  93   if (MP_CMP(d, !=, m)) {
  94     fputs("\n*** fromint failed.\n", stderr);
  95     fprintf(stderr, "i = %u", i);
  96     fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10);
  97     fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10);
  98     fputc('\n', stderr);
  99     ok = 0;
 100   }
 101
 102   mp_drop(m);
 103   mp_drop(d);
 104   return (ok);
 105 }
 106
 107 static int fromint(dstr *v)
 108 {
 109   int i = *(int *)v[0].buf;
 110   mp *m = *(mp **)v[1].buf;
 111   mp *d = mp_fromint(MP_NEW, i);
 112   int ok = 1;
 113
 114   if (MP_CMP(d, !=, m)) {
 115     fputs("\n*** fromint failed.\n", stderr);
 116     fprintf(stderr, "i = %i", i);
 117     fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10);
 118     fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10);
 119     fputc('\n', stderr);
 120     ok = 0;
 121   }
 122
 123   mp_drop(m);
 124   mp_drop(d);
 125   return (ok);
 126 }
 127
 128 static int touint(dstr *v)
 129 {
 130   mp *m = *(mp **)v[0].buf;
 131   unsigned i = *(unsigned *)v[1].buf;
 132   unsigned j = mp_touint(m);
 133   int ok = 1;
 134
 135   if (i != j) {
 136     fputs("\n*** touint failed.\n", stderr);
 137     fputs("m = ", stderr); mp_writefile(m, stderr, 10);
 138     fprintf(stderr, "\nexpect = %u; result = %u\n", i, j);
 139     ok = 0;
 140   }
 141
 142   mp_drop(m);
 143   return (ok);
 144 }
 145
 146 static int toint(dstr *v)
 147 {
 148   mp *m = *(mp **)v[0].buf;
 149   int i = *(int *)v[1].buf;
 150   int j = mp_toint(m);
 151   int ok = 1;
 152
 153   if (i != j) {
 154     fputs("\n*** toint failed.\n", stderr);
 155     fputs("m = ", stderr); mp_writefile(m, stderr, 10);
 156     fprintf(stderr, "\nexpect = %i; result = %i\n", i, j);
 157     ok = 0;
 158   }
 159
 160   mp_drop(m);
 161   return (ok);
 162 }
 163
 164 static test_chunk tests[] = {
 165   { "fromuint", fromuint, { &type_int, &type_mp, 0 } },
 166   { "fromint", fromint, { &type_int, &type_mp, 0 } },
 167   { "touint", touint, { &type_mp, &type_int, 0 } },
 168   { "toint", toint, { &type_mp, &type_int, 0 } },
 169   { 0, 0, { 0 } }
 170 };
 171
 172 int main(int argc, char *argv[])
 173 {
 174   sub_init();
 175   test_run(argc, argv, tests, SRCDIR "/tests/mpint");
 176   return (0);
 177 }
 178
 179 #endif
 180
 181 /*----- That's all, folks -------------------------------------------------*/