uint32_unpack.c

   1 #include "uint32.h"
   2
   3 void uint32_unpack(const char s[4],uint32 *u)
   4 {
   5   uint32 result;
   6
   7   result = (unsigned char) s[3];
   8   result <<= 8;
   9   result += (unsigned char) s[2];
  10   result <<= 8;
  11   result += (unsigned char) s[1];
  12   result <<= 8;
  13   result += (unsigned char) s[0];
  14
  15   *u = result;
  16 }
  17
  18 void uint32_unpack_big(const char s[4],uint32 *u)
  19 {
  20   uint32 result;
  21
  22   result = (unsigned char) s[0];
  23   result <<= 8;
  24   result += (unsigned char) s[1];
  25   result <<= 8;
  26   result += (unsigned char) s[2];
  27   result <<= 8;
  28   result += (unsigned char) s[3];
  29
  30   *u = result;
  31 }