1 /* PR middle-end/79496 - call to snprintf with non-zero size eliminated
2    with -Wformat-truncation=2
3    { dg-do compile }
4    { dg-options "-O2 -Wall -Wformat-truncation=2 -fprintf-return-value -fdump-tree-optimized" } */
5 
6 char d[2];
7 
test_cst(unsigned n)8 int test_cst (unsigned n)
9 {
10   if (1 < n)
11     n = 0;
12 
13   return __builtin_snprintf (d, n, "%d", 1);
14 }
15 
test_var(char * d,unsigned n)16 int test_var (char *d, unsigned n)
17 {
18   if (2 < n)
19     n = 0;
20 
21   return __builtin_snprintf (d, n, "%i", 1);
22 }
23 
24 /* { dg-final { scan-tree-dump-times "snprintf" 2 "optimized"} } */
25