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[libpng16] Removed one of the GCC-7.1.0 'strict-overflow' warnings that
result when integers appear on both sides of a compare. Worked around the others by forcing the strict-overflow setting in the relevant functions to a level where they are not reported. Changed "FALL THROUGH" comments to "FALLTHROUGH" because GCC doesn't like the space. Worked around some C-style casts from (void*) because g++ 5.4.0 objects to them. Increased the buffer size for 'sprint' to pass the gcc 7.1.0 'sprint overflow' check that is on by default with -Wall -Wextra.
This commit is contained in:
committed by
Glenn Randers-Pehrson
parent
ecea632c4c
commit
72d07d3202
@@ -1,8 +1,8 @@
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/* pngerror.c - stub functions for i/o and memory allocation
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*
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* Last changed in libpng 1.6.26 [October 20, 2016]
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* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
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* Last changed in libpng 1.6.31 [(PENDING RELEASE)]
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* Copyright (c) 1998-2002,2004,2006-2017 Glenn Randers-Pehrson
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* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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*
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@@ -163,7 +163,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
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case PNG_NUMBER_FORMAT_02u:
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/* Expects at least 2 digits. */
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mincount = 2;
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/* FALL THROUGH */
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/* FALLTHROUGH */
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case PNG_NUMBER_FORMAT_u:
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*--end = digits[number % 10];
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@@ -173,7 +173,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
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case PNG_NUMBER_FORMAT_02x:
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/* This format expects at least two digits */
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mincount = 2;
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/* FALL THROUGH */
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/* FALLTHROUGH */
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case PNG_NUMBER_FORMAT_x:
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*--end = digits[number & 0xf];
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