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

   1 /* -*-c-*-
   2  *
   3  * Check the bit operations work
   4  *
   5  * (c) 2002 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of Catacomb.
  11  *
  12  * Catacomb is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU Library General Public License as
  14  * published by the Free Software Foundation; either version 2 of the
  15  * License, or (at your option) any later version.
  16  *
  17  * Catacomb is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU Library General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Library General Public
  23  * License along with Catacomb; if not, write to the Free
  24  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  25  * MA 02111-1307, USA.
  26  */
  27
  28 /*----- Header files ------------------------------------------------------*/
  29
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include "bitops.h"
  33 #include "mpx.h"
  34
  35 /*----- Main code ---------------------------------------------------------*/
  36
  37 int main(void)
  38 {
  39   int rc = 0;
  40 #define CHECK(string) do {                                              \
  41   const char *ref = #string;                                            \
  42   char buf[5];                                                          \
  43   buf[0] = B##string(0u, 0u) & 1u? '1' : '0';                           \
  44   buf[1] = B##string(0u, 1u) & 1u? '1' : '0';                           \
  45   buf[2] = B##string(1u, 0u) & 1u? '1' : '0';                           \
  46   buf[3] = B##string(1u, 1u) & 1u? '1' : '0';                           \
  47   buf[4] = 0;                                                           \
  48   if (strcmp(buf, ref) != 0) {                                          \
  49     fprintf(stderr, "mismatch ref `%s' != buf `%s'\n", ref, buf);       \
  50     rc = 1;                                                             \
  51   }                                                                     \
  52 } while (0);
  53   MPX_DOBIN(CHECK)
  54   return (rc);
  55 }
  56 /*----- That's all, folks -------------------------------------------------*/