Fix invalid assumptions about integer sizes.

src/md5.hpp

@@ -39,6 +39,8 @@ documentation and/or software.
 
 */
 
+#include <boost/cstdint.hpp>
+
 class MD5 {
 
 public:
@@ -54,9 +56,9 @@ public:
 private:
 
 // first, some types:
-  typedef unsigned       int uint4; // assumes integer is 4 words long
-  typedef unsigned short int uint2; // assumes short integer is 2 words long
-  typedef unsigned      char uint1; // assumes char is 1 word long
+  typedef boost::uint32_t uint4;
+  typedef boost::uint16_t uint2;
+  typedef boost::uint8_t  uint1;
 
 // next, the private data:
   uint4 state[4];