commit f3f7e147278af44f66974a3d453496ce4d6ed0e3
author John Bowler <jbowler@acm.org> Fri Sep 09 07:32:37 2011 -0500
committer Glenn Randers-Pehrson <glennrp at users.sourceforge.net> Fri Sep 09 07:32:37 2011 -0500
tree 0311ba4f04cb2c2cf2e82dfc70120e4a9a923476
parent 3c2ae60f46030cb6326ebd96a4bdf81b9de69da8

[libpng15] Fixed 64-bit compilation errors (gcc). The errors fixed relate

to conditions where types that are 32 bits in the GCC 32-bit
world (uLong and png_size_t) become 64 bits in the 64-bit
world.  This produces potential truncation errors which the
compiler correctly flags.

pngrutil.c

diff --git a/pngrutil.c b/pngrutil.c
index 99bfdca..039c77f 100644
--- a/pngrutil.c
+++ b/pngrutil.c
@@ -87,10 +87,10 @@
 png_get_int_32)(png_const_bytep buf)
 {
    png_uint_32 uval = png_get_uint_32(buf);
-   if ((uval & 0x80000000L) == 0) /* non-negative */
+   if ((uval & 0x80000000) == 0) /* non-negative */
       return uval;
 
-   uval = (uval ^ 0xffffffffL) + 1;  /* 2's complement: -x = ~x+1 */
+   uval = (uval ^ 0xffffffff) + 1;  /* 2's complement: -x = ~x+1 */
    return -(png_int_32)uval;
 }