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| author | Ori Bernstein <ori@eigenstate.org> | 2020-03-22 17:31:39 -0700 |
|---|---|---|
| committer | Ori Bernstein <ori@eigenstate.org> | 2020-03-22 17:31:39 -0700 |
| commit | a654b94db8a3574b7a774edfd77b8612c0b642cd (patch) | |
| tree | c55640ab3d06fe8020c1dcd0ebbf0081c879e7d5 /amd64/include/ape/stdarg.h | |
| parent | 7364a96b289c24637db802fca6c57d8024ca2359 (diff) | |
| download | plan9front-a654b94db8a3574b7a774edfd77b8612c0b642cd.tar.xz | |
add va_copy macro, conforming to c99 7.15.1.2
Diffstat (limited to 'amd64/include/ape/stdarg.h')
| -rw-r--r-- | amd64/include/ape/stdarg.h | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/amd64/include/ape/stdarg.h b/amd64/include/ape/stdarg.h index cf466841f..b687c5a46 100644 --- a/amd64/include/ape/stdarg.h +++ b/amd64/include/ape/stdarg.h @@ -3,8 +3,10 @@ typedef char *va_list; -#define va_start(list, start) list = (sizeof(start)<8 ? (char *)((long long *)&(start)+1) : \ -(char *)(&(start)+1)) +#define va_start(list, start) \ + (list = (sizeof(start)<8 ? \ + (char *)((long long *)&(start)+1) : \ + (char *)(&(start)+1))) #define va_end(list) #define va_arg(list, mode)\ ((sizeof(mode) == 1)?\ @@ -14,5 +16,7 @@ typedef char *va_list; (sizeof(mode) == 4)?\ ((mode*)(list += 8))[-2]:\ ((mode*)(list += sizeof(mode)))[-1]) +#define va_copy(dst, src) \ + ((dst) = (src)) #endif /* __STDARG */ |