[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:
John Bowler
2017-07-11 07:50:35 -05:00
committed by Glenn Randers-Pehrson
parent ecea632c4c
commit 72d07d3202
13 changed files with 124 additions and 60 deletions

View File

@@ -1,8 +1,8 @@
/* pngerror.c - stub functions for i/o and memory allocation
*
* Last changed in libpng 1.6.26 [October 20, 2016]
* Copyright (c) 1998-2002,2004,2006-2016 Glenn Randers-Pehrson
* Last changed in libpng 1.6.31 [(PENDING RELEASE)]
* Copyright (c) 1998-2002,2004,2006-2017 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.)
*
@@ -163,7 +163,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
case PNG_NUMBER_FORMAT_02u:
/* Expects at least 2 digits. */
mincount = 2;
/* FALL THROUGH */
/* FALLTHROUGH */
case PNG_NUMBER_FORMAT_u:
*--end = digits[number % 10];
@@ -173,7 +173,7 @@ png_format_number(png_const_charp start, png_charp end, int format,
case PNG_NUMBER_FORMAT_02x:
/* This format expects at least two digits */
mincount = 2;
/* FALL THROUGH */
/* FALLTHROUGH */
case PNG_NUMBER_FORMAT_x:
*--end = digits[number & 0xf];