ref: c3ba64f6935322f09b6de5c2285544fd471c605d
dir: /sys/src/libstdio/printf.c/
/* * pANS stdio -- printf */ #include "iolib.h" int printf(const char *fmt, ...){ int n; va_list args; va_start(args, fmt); n=vfprintf(stdout, fmt, args); va_end(args); return n; }