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[libpng16] Suppressed some warnings from the Borland C++ 5.5.1/5.82 compiler

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(Bug report by Viktor Szaka'ts).  Several warnings remain and are
unavoidable, where we test for overflow.
This commit is contained in:
Glenn Randers-Pehrson
2015-07-29 07:29:17 -05:00
parent 1fa62ae734
commit e485a09e0e
4 changed files with 21 additions and 9 deletions
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7
pngrutil.c
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@@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.6.18 [July 23, 2015]
* Last changed in libpng 1.6.19 [(PENDING RELEASE)]
* Copyright (c) 1998-2015 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -1818,7 +1818,7 @@ png_handle_tRNS(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
return;
}
if (length > png_ptr->num_palette ||
if (length > (unsigned int) png_ptr->num_palette ||
length > (unsigned int) PNG_MAX_PALETTE_LENGTH ||
length == 0)
{
@@ -1982,7 +1982,8 @@ png_handle_hIST(png_structrp png_ptr, png_inforp info_ptr, png_uint_32 length)
num = length / 2 ;
if (num != png_ptr->num_palette || num > (unsigned int) PNG_MAX_PALETTE_LENGTH)
if (num != (unsigned int) png_ptr->num_palette ||
num > (unsigned int) PNG_MAX_PALETTE_LENGTH)
{
png_crc_finish(png_ptr, length);
png_chunk_benign_error(png_ptr, "invalid");