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[libpng16] Added "& 0xff" to things being typecast to "png_byte".

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Glenn Randers-Pehrson
2015-02-27 18:53:44 -06:00
parent 9a3de48b48
commit 7011a8cec3
12 changed files with 249 additions and 231 deletions
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2
pngpread.c
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@@ -168,7 +168,7 @@ png_push_read_sig(png_structrp png_ptr, png_inforp info_ptr)
png_push_fill_buffer(png_ptr, &(info_ptr->signature[num_checked]),
num_to_check);
png_ptr->sig_bytes = (png_byte)(png_ptr->sig_bytes + num_to_check);
png_ptr->sig_bytes = (png_byte)((png_ptr->sig_bytes + num_to_check) & 0xff);
if (png_sig_cmp(info_ptr->signature, num_checked, num_to_check))
{