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[libpng15] Use "if (value != 0)" instead of "if (value)" consistently.

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Glenn Randers-Pehrson
2014-03-08 16:23:06 -06:00
parent a00d14ddcf
commit d92bbef414
17 changed files with 132 additions and 124 deletions
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16
pngrutil.c
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@@ -1,7 +1,7 @@
/* pngrutil.c - utilities to read a PNG file
*
* Last changed in libpng 1.5.18 [February 6, 2014]
* Last changed in libpng 1.5.19 [(PENDING RELEASE)]
* Copyright (c) 1998-2014 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.)
@@ -209,7 +209,7 @@ png_crc_finish(png_structp png_ptr, png_uint_32 skip)
png_crc_read(png_ptr, png_ptr->zbuf, png_ptr->zbuf_size);
}
if (i)
if (i != 0)
{
png_crc_read(png_ptr, png_ptr->zbuf, i);
}
@@ -265,7 +265,7 @@ png_crc_error(png_structp png_ptr)
/* The chunk CRC must be serialized in a single I/O call. */
png_read_data(png_ptr, crc_bytes, 4);
if (need_crc)
if (need_crc != 0)
{
crc = png_get_uint_32(crc_bytes);
return ((int)(crc != png_ptr->crc));
@@ -1318,7 +1318,7 @@ png_handle_iCCP(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
/* Compression_type should always be zero */
compression_type = *profile++;
if (compression_type)
if (compression_type != 0)
{
png_warning(png_ptr, "Ignoring nonzero compression type in iCCP chunk");
compression_type = 0x00; /* Reset it to zero (libpng-1.0.6 through 1.0.8
@@ -2318,7 +2318,7 @@ png_handle_tEXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_ptr->chunkdata = NULL;
png_free(png_ptr, text_ptr);
if (ret)
if (ret != 0)
png_warning(png_ptr, "Insufficient memory to process text chunk");
}
#endif
@@ -2448,7 +2448,7 @@ png_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_free(png_ptr, png_ptr->chunkdata);
png_ptr->chunkdata = NULL;
if (ret)
if (ret != 0)
png_error(png_ptr, "Insufficient memory to store zTXt chunk");
}
#endif
@@ -2628,7 +2628,7 @@ png_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32 length)
png_free(png_ptr, png_ptr->chunkdata);
png_ptr->chunkdata = NULL;
if (ret)
if (ret != 0)
png_error(png_ptr, "Insufficient memory to store iTXt chunk");
}
#endif
@@ -3068,7 +3068,7 @@ png_combine_row(png_structp png_ptr, png_bytep dp, int display)
}
/* Work out the bytes to copy. */
if (display)
if (display != 0)
{
/* When doing the 'block' algorithm the pixel in the pass gets
* replicated to adjacent pixels. This is why the even (0,2,4,6)