| /* 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 } */ |
| } |