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Fix MSVC Level 2 warning

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MSVC doesn't like '-(unsigned)', so replace it by 0U-(unsigned) (in 1.6).

Signed-off-by: John Bowler <jbowler@acm.org>
This commit is contained in:
John Bowler 2016-06-22 17:35:49 -07:00
parent 4af267c07b
commit 1df0ace0b4
1 changed files with 1 additions and 1 deletions
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2
pngwutil.c
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@ -2448,7 +2448,7 @@ png_write_find_filter(png_structrp png_ptr, png_row_infop row_info)
/* Overflow can occur in the calculation, just select the lowest set
* filter.
*/
filter_to_do &= -filter_to_do;
filter_to_do &= 0U-filter_to_do;
}
else if ((filter_to_do & PNG_FILTER_NONE) != 0 &&
filter_to_do != PNG_FILTER_NONE)