ref: a7b06e0fdd02355b2dc9ce2349afbd25bf8287a3
dir: /sys/src/ape/lib/ap/stdio/vsprintf.c/
/* * pANS stdio -- vsprintf */ #include "iolib.h" int vsprintf(char *buf, const char *fmt, va_list args){ int n; FILE *f=_IO_sopenw(); if(f==NULL) return 0; setvbuf(f, buf, _IOFBF, 100000); n=vfprintf(f, fmt, args); _IO_sclose(f); return n; }