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1 // commit 109048e031f39fbb370211fde44ababf6c04c8fb 2014-04-07
2 // float printf out-of-bounds access
3 #include <stdio.h>
4 #include <string.h>
5 #include "test.h"
6 
t(const char * fmt,double d,const char * want)7 static void t(const char *fmt, double d, const char *want)
8 {
9 	char buf[256];
10 	int n = strlen(want);
11 	int r = snprintf(buf, sizeof buf, fmt, d);
12 	if (r != n || memcmp(buf, want, n+1) != 0)
13 		t_error("snprintf(\"%s\",%f) want %s got %s\n", fmt, d, want, buf);
14 }
15 
main()16 int main()
17 {
18 	// fill stack with something
19 	t("%.1f", 123123123123123.0, "123123123123123.0");
20 	// test for out-of-bounds access
21 	t("%g", 999999999.0, "1e+09");
22 	t("%.3e", 999999999.75, "1.000e+09");
23 	return t_status;
24 }
25