Release-1.8.2-20120930

1 files changed, 5 insertions, 5 deletions

diff --git a/src/lodepng.cpp b/src/lodepng.cpp
index 638dbf4..df8378e 100644
--- a/src/lodepng.cpp
+++ b/src/lodepng.cpp
@@ -1765,13 +1765,13 @@ static unsigned Crc32_crc_table[256];
 /*Make the table for a fast CRC.*/
 static void Crc32_make_crc_table(void)
 {
-  unsigned c, k, n;
+  unsigned int c, k, n;
   for(n = 0; n < 256; n++)
   {
     c = n;
     for(k = 0; k < 8; k++)
     {
-      if(c & 1) c = 0xedb88320L ^ (c >> 1);
+      if(c & 1) c = (unsigned int)(0xedb88320L ^ (c >> 1));
       else c = c >> 1;
     }
     Crc32_crc_table[n] = c;
@@ -1782,9 +1782,9 @@ static void Crc32_make_crc_table(void)
 /*Update a running CRC with the bytes buf[0..len-1]--the CRC should be 
 initialized to all 1's, and the transmitted value is the 1's complement of the
 final running CRC (see the crc() routine below).*/
-static unsigned Crc32_update_crc(const unsigned char* buf, unsigned crc, size_t len)
+static unsigned Crc32_update_crc(const unsigned char* buf, unsigned int crc, size_t len)
 {
-  unsigned c = crc;
+  unsigned int c = crc;
   size_t n;
 
   if(!Crc32_crc_table_computed) Crc32_make_crc_table();
@@ -1798,7 +1798,7 @@ static unsigned Crc32_update_crc(const unsigned char* buf, unsigned crc, size_t
 /*Return the CRC of the bytes buf[0..len-1].*/
 static unsigned Crc32_crc(const unsigned char* buf, size_t len)
 {
-  return Crc32_update_crc(buf, 0xffffffffL, len) ^ 0xffffffffL;
+  return Crc32_update_crc(buf, 0xffffffffu, len) ^ 0xffffffffu;
 }
 
 /* ////////////////////////////////////////////////////////////////////////// */