/* PR tree-optimization/86614 - duplicate -Warray-bounds for a strncpy call with out-of-bounds offset { dg-do compile } { dg-options "-O2 -Warray-bounds" } */ #if __cplusplus extern "C" #endif char *strncpy (char *, const char *, __SIZE_TYPE__); void sink (void *); struct A { char b[17]; } a[2]; void g (const char *s, unsigned n) { int i = (char *)a[1].b - (char *)a + 1; char *d = a[1].b; /* Verify the bug is diagnosed exactly once, using either form of the warning. */ strncpy (d + i, s, n); /* { dg-warning "array subscript \[0-9]+ is outside array bounds|offset \[0-9]+ is out of the bounds" } */ /* { dg-bogus "offset \[0-9]+ is out of the bounds|array subscript \[0-9]+ is outside array bounds" "" { target *-*-* } .-1 } */ }