ref: f777743b7242e539a8ac806e4e15c4b527be4bb6
dir: /sys/src/ape/lib/ap/stdio/sprintf.c/
/* * pANS stdio -- sprintf */ #include "iolib.h" int sprintf(char *buf, const char *fmt, ...){ int n; va_list args; FILE *f=_IO_sopenw(); if(f==NULL) return 0; setvbuf(f, buf, _IOFBF, 100000); va_start(args, fmt); n=vfprintf(f, fmt, args); va_end(args); _IO_sclose(f); return n; }