mewin/libpng
1
0
Fork 0
mirror of https://git.code.sf.net/p/libpng/code.git synced 2025-07-10 18:04:09 +02:00
Code Issues Projects Releases Wiki Activity

Imported from libpng-0.96.tar

Browse Source
This commit is contained in:
Andreas Dilger
1997-05-16 02:46:07 -05:00
committed by Glenn Randers-Pehrson
parent 02ad0efbc8
commit 47a0c422ca
40 changed files with 6833 additions and 3520 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
pngerror.c
View File

@@ -1,10 +1,11 @@
/* pngerror.c - stub functions for i/o and memory allocation
libpng 1.0 beta 4 - version 0.90
libpng 1.0 beta 6 - version 0.96
For conditions of distribution and use, see copyright notice in png.h
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
January 10, 1997
Copyright (c) 1996, 1997 Andreas Dilger
May 12, 1997
This file provides a location for all error handling. Users which
need special error handling are expected to write replacement functions
@@ -26,7 +27,7 @@ static void png_default_warning PNGARG((png_structp png_ptr,
void
png_error(png_structp png_ptr, png_const_charp message)
{
if (png_ptr->error_fn)
if (png_ptr->error_fn != NULL)
(*(png_ptr->error_fn))(png_ptr, message);
/* if the following returns or doesn't exist, use the default function,
@@ -41,7 +42,7 @@ png_error(png_structp png_ptr, png_const_charp message)
void
png_warning(png_structp png_ptr, png_const_charp message)
{
if (png_ptr->warning_fn)
if (png_ptr->warning_fn != NULL)
(*(png_ptr->warning_fn))(png_ptr, message);
else
png_default_warning(png_ptr, message);
@@ -76,7 +77,7 @@ png_default_error(png_structp png_ptr, png_const_charp message)
static void
png_default_warning(png_structp png_ptr, png_const_charp message)
{
if (!png_ptr)
if (png_ptr == NULL)
return;
#ifndef PNG_NO_STDIO