/* PR middle-end/79222 - missing -Wstringop-overflow= on a stpcpy overflow { dg-do compile } { dg-options "-O2" } */ extern char* stpcpy (char*, const char*); char d[3]; char* f (int i) { const char *s = i < 0 ? "01234567" : "9876543210"; return stpcpy (d, s); /* { dg-warning ".stpcpy. writing between 9 and 11 bytes into a region of size 3 overflows the destination" } */ }