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[devel] Changed PNG_UNUSED to "(void)param;"

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Glenn Randers-Pehrson
2011-01-30 11:55:35 -06:00
parent cbbe9a5c01
commit 4c0eaee5c6
3 changed files with 9 additions and 7 deletions
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3
pngpriv.h
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@@ -89,7 +89,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
* the terminating semicolon. Also note that some of these might not
* work when "param" is a structure, but that is never the case in libpng.
*/
#define PNG_UNUSED(param) {if(param){}}
#define PNG_UNUSED(param) (void)param;
#if 0 /* Possibilities discussed on png-mng-implement, starting 27 Jan 2011 */
#ifndef PNG_UNUSED /* "best" but complex */
@@ -98,6 +98,7 @@ typedef PNG_CONST png_uint_16p FAR * png_const_uint_16pp;
#else
# define PNG_UNUSED(param)
#endif
#define PNG_UNUSED(param) {if(param){}}
#define PNG_UNUSED(param) param = param; /* What we used before */
#define PNG_UNUSED(param) {(void)param;} /* Visual C complains */
#define PNG_UNUSED(param) if(param); /* gcc-4.2 complains */