| /* PR c++/97201 - ICE in -Warray-bounds writing to result of operator new(0) |
| Verify that out-of-bounds accesses to memory returned by the new expression |
| are diagnosed. |
| { dg-do compile } |
| { dg-options "-O2 -Wall -Warray-bounds -ftrack-macro-expansion=0" } */ |
| |
| typedef __INT32_TYPE__ int32_t; |
| |
| template <int N> struct S { char a[N]; }; |
| |
| void sink (void*); |
| |
| #define NEW(n) new S<n> |
| #define T(T, n, i) do { \ |
| T *p = (T*)NEW (n); \ |
| p[i] = 0; \ |
| sink (p); \ |
| } while (0) |
| |
| void warn_new () |
| { |
| T (int32_t, 0, 0); // { dg-warning "array subscript 0 is outside array bounds of 'int32_t \\\[0]'" } |
| // { dg-message "object of size \\d allocated by '\[^\n\r]*operator new\[^\n\r]*'" "note" { target *-*-* } .-1 } |
| T (int32_t, 1, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[1]'" } |
| T (int32_t, 2, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[2]'" } |
| T (int32_t, 3, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[3]'" } |
| |
| T (int32_t, 4, 0); |
| |
| T (int32_t, 0, 1); // { dg-warning "array subscript 1 is outside array bounds of 'int32_t \\\[0]'" } |
| T (int32_t, 1, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 2, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 3, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 4, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 5, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[5]" } |
| T (int32_t, 6, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[6]" } |
| T (int32_t, 7, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[7]" } |
| |
| T (int32_t, 8, 1); |
| } |
| |
| |
| void warn_array_new () |
| { |
| #undef NEW |
| #define NEW(n) new char [n] |
| |
| T (int32_t, 0, 0); // { dg-warning "array subscript 0 is outside array bounds of 'int32_t \\\[0]'" } |
| // { dg-message "object of size \\d allocated by '\[^\n\r]*operator new\[^\n\r]*'" "note" { target *-*-* } .-1 } |
| T (int32_t, 1, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[1]'" } |
| T (int32_t, 2, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[2]'" } |
| T (int32_t, 3, 0); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[0]' is partly outside array bounds of 'unsigned char \\\[3]'" } |
| |
| T (int32_t, 4, 0); |
| |
| T (int32_t, 0, 1); // { dg-warning "array subscript 1 is outside array bounds of 'int32_t \\\[0]'" } |
| T (int32_t, 1, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 2, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 3, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 4, 1); // { dg-warning "array subscript 1 is outside array bounds " } |
| T (int32_t, 5, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[5]" } |
| T (int32_t, 6, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[6]" } |
| T (int32_t, 7, 1); // { dg-warning "array subscript 'int32_t {aka (long )?int}\\\[1]' is partly outside array bounds of 'unsigned char \\\[7]" } |
| |
| T (int32_t, 8, 1); |
| } |