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| author |  Thomas Preud'homme | 2013-02-10 20:16:17 +0100 |
|---|---|---|
| committer |  Nikias Bassen | 2013-02-10 20:16:17 +0100 |
| commit | 7cbf283090ec273c006a14129eee8bba1885da58 (patch) | |
| tree | 2a865fb9254e84a81fa2d7c0a39f3f89a31a78e3 /test/testsuppt.h | |
| parent | ea5c8334de82d6e9f0705e8a2c4a3ab0b29731ad (diff) | |
| download | libvformat-7cbf283090ec273c006a14129eee8bba1885da58.tar.gz libvformat-7cbf283090ec273c006a14129eee8bba1885da58.tar.bz2 | |
Cast NULL in void * in functions using va_arg
NULL isn't necessary a zero value. For instance, on AMD64 architecture,
a null pointer is 0x7fff00000000. Usually things works automagically as
the compiler always cast NULL and 0 in void * if stored in a pointer
variable. But with functions with variable number of arguments the
compiler can't know the type of the arguments and thus don't make the
cast. In consequences, NULL and 0 must be cast explicitely in void * if
the parameter is a pointer.
Diffstat (limited to 'test/testsuppt.h')
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