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signed/unsigned warning fix (GCC 4.8.5)

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Signed-off-by: John Bowler <jbowler@acm.org>
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John Bowler 2016-05-09 16:36:15 -07:00
parent 4905ed4aae
commit 52c9e4fdd6
1 changed files with 1 additions and 1 deletions
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pngwutil.c
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@ -3704,7 +3704,7 @@ png_write_start_IDAT(png_structrp png_ptr)
{ {
# ifdef PNG_SELECT_FILTER_SUPPORTED # ifdef PNG_SELECT_FILTER_SUPPORTED
/* The result depends on the png compression level: */ /* The result depends on the png compression level: */
const int png_level = pz_value(png_level, ps->pz_IDAT); const unsigned int png_level = pz_value(png_level, ps->pz_IDAT);
/* If the bit depth is less than 8, so pixels are not byte aligned, /* If the bit depth is less than 8, so pixels are not byte aligned,
* PNG filtering hardly ever helps because there is no correlation * PNG filtering hardly ever helps because there is no correlation