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

   1 /* -*-c-*-
   2  *
   3  * $Id: mpint.c,v 1.2 1999/12/10 23:22:53 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 1.2  1999/12/10 23:22:53  mdw
  34  * Support for uint32.
  35  *
  36  * Revision 1.1  1999/11/25 11:38:31  mdw
  37  * Support for conversions between MPs and C integers.
  38  *
  39  */
  40
  41 /*----- Header files ------------------------------------------------------*/
  42
  43 #include "mpint.h"
  44
  45 /*----- Main code ---------------------------------------------------------*/
  46
  47 /* --- Conversion from C integers --- */
  48
  49 #define FROM(name, type)                                                \
  50   mp *mp_from##name(mp *d, type i) {                                    \
  51     MP_FROMINT(d, type, i);                                             \
  52     return (d);                                                         \
  53   }
  54
  55 FROM(short, short)
  56 FROM(ushort, unsigned short)
  57 FROM(int, int)
  58 FROM(uint, unsigned)
  59 FROM(uint32, uint32)
  60 FROM(long, long)
  61 FROM(ulong, unsigned long)
  62
  63 #undef FROM
  64
  65 /* --- Conversion to C integers --- */
  66
  67 #define TO(name, type, max)                                             \
  68   type mp_to##name(const mp *m)                                         \
  69   {                                                                     \
  70     type i;                                                             \
  71     MP_TOINT(m, type, max, i);                                          \
  72     return (i);                                                         \
  73   }
  74
  75 TO(short, short, SHRT_MAX)
  76 TO(ushort, unsigned short, USHRT_MAX)
  77 TO(int, int, INT_MAX)
  78 TO(uint, unsigned, UINT_MAX)
  79 TO(uint32, uint32, 0xffffffff)
  80 TO(long, long, LONG_MAX)
  81 TO(ulong, unsigned long, ULONG_MAX)
  82
  83 #undef TO
  84
  85 /*----- Test rig ----------------------------------------------------------*/
  86
  87 #ifdef TEST_RIG
  88
  89 #include <mLib/testrig.h>
  90
  91 static int fromuint(dstr *v)
  92 {
  93   unsigned long i = *(unsigned long *)v[0].buf;
  94   mp *m = *(mp **)v[1].buf;
  95   mp *d = mp_fromuint(MP_NEW, i);
  96   int ok = 1;
  97
  98   if (MP_CMP(d, !=, m)) {
  99     fputs("\n*** fromint failed.\n", stderr);
 100     fprintf(stderr, "i = %lu", i);
 101     fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10);
 102     fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10);
 103     fputc('\n', stderr);
 104     ok = 0;
 105   }
 106
 107   mp_drop(m);
 108   mp_drop(d);
 109   assert(mparena_count(MPARENA_GLOBAL) == 0);
 110   return (ok);
 111 }
 112
 113 static int fromint(dstr *v)
 114 {
 115   long i = *(long *)v[0].buf;
 116   mp *m = *(mp **)v[1].buf;
 117   mp *d = mp_fromint(MP_NEW, i);
 118   int ok = 1;
 119
 120   if (MP_CMP(d, !=, m)) {
 121     fputs("\n*** fromint failed.\n", stderr);
 122     fprintf(stderr, "i = %li", i);
 123     fputs("\nexpect = ", stderr); mp_writefile(m, stderr, 10);
 124     fputs("\nresult = ", stderr); mp_writefile(d, stderr, 10);
 125     fputc('\n', stderr);
 126     ok = 0;
 127   }
 128
 129   mp_drop(m);
 130   mp_drop(d);
 131   assert(mparena_count(MPARENA_GLOBAL) == 0);
 132   return (ok);
 133 }
 134
 135 static int touint(dstr *v)
 136 {
 137   mp *m = *(mp **)v[0].buf;
 138   unsigned long i = *(unsigned long *)v[1].buf;
 139   unsigned j = mp_touint(m);
 140   int ok = 1;
 141
 142   if (i != j) {
 143     fputs("\n*** touint failed.\n", stderr);
 144     fputs("m = ", stderr); mp_writefile(m, stderr, 10);
 145     fprintf(stderr, "\nexpect = %lu; result = %u\n", i, j);
 146     ok = 0;
 147   }
 148
 149   mp_drop(m);
 150   assert(mparena_count(MPARENA_GLOBAL) == 0);
 151   return (ok);
 152 }
 153
 154 static int toint(dstr *v)
 155 {
 156   mp *m = *(mp **)v[0].buf;
 157   long i = *(long *)v[1].buf;
 158   int j = mp_toint(m);
 159   int ok = 1;
 160
 161   if (i != j) {
 162     fputs("\n*** toint failed.\n", stderr);
 163     fputs("m = ", stderr); mp_writefile(m, stderr, 10);
 164     fprintf(stderr, "\nexpect = %li; result = %i\n", i, j);
 165     ok = 0;
 166   }
 167
 168   mp_drop(m);
 169   assert(mparena_count(MPARENA_GLOBAL) == 0);
 170   return (ok);
 171 }
 172
 173 static test_chunk tests[] = {
 174   { "fromuint", fromuint, { &type_ulong, &type_mp, 0 } },
 175   { "fromint", fromint, { &type_long, &type_mp, 0 } },
 176   { "touint", touint, { &type_mp, &type_ulong, 0 } },
 177   { "toint", toint, { &type_mp, &type_long, 0 } },
 178   { 0, 0, { 0 } }
 179 };
 180
 181 int main(int argc, char *argv[])
 182 {
 183   sub_init();
 184   test_run(argc, argv, tests, SRCDIR "/tests/mpint");
 185   return (0);
 186 }
 187
 188 #endif
 189
 190 /*----- That's all, folks -------------------------------------------------*/