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Define va_start() such that the second parameter is not required (C23).

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This commit is contained in:
Stephen Heumann 2024-08-30 21:24:48 -05:00
parent 67a94eda4c
commit bae40bc615
1 changed files with 4 additions and 0 deletions
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4
ORCACDefs/stdarg.h
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@ -31,7 +31,11 @@ typedef char *__va_list[2];
typedef __va_list va_list;
#define va_end(ap) __record_va_info(ap)
#if __STDC_VERSION__ >= 202311L
#define va_start(ap,...) ((void) ((ap)[0] = (char *)__orcac_va_info[1], (ap)[1] = (char *)&__orcac_va_info))
#else
#define va_start(ap,LastFixedParm) ((void) ((ap)[0] = (char *)__orcac_va_info[1], (ap)[1] = (char *)&__orcac_va_info))
#endif
#define va_arg(ap,type) _Generic(*(type *)0, \
double: (type)((long double *)((ap)[0] += sizeof(long double)))[-1], \
default: ((type *)((ap)[0] += sizeof(type)))[-1])