ref: 8bb495b12b93a9be9578563aa9ca17847040ade3
dir: /snprintandf.c/
#include <u.h>
#include <libc.h>
#include <stdio.h>
void
main()
{
char *s;
int l;
s = malloc(128);
l = snprint(s, 128, "%s%s", "hi", "there");
print("%s(%d)\n", s, l);
l = snprintf(s, 128, "%s%s", "hi", "there");
print("%s(%d)\n", s, l);
free(s);
exits(0);
}