| /* { dg-do run } */ |
| /* { dg-options "-fsanitize=bounds -Wall -Wextra -Wno-array-bounds" } */ |
| |
| /* Test off-by-one. */ |
| |
| struct S { int a; int b; } s[4], *t; |
| struct U { int a[10]; } u[4], *v; |
| volatile int *a, *b, *c; |
| volatile void *d; |
| volatile int e[4][4]; |
| |
| int |
| main (void) |
| { |
| t = &s[4]; // OK |
| a = &s[4].a; // Error |
| b = &s[4].b; // Error |
| d = &e[4]; // OK |
| c = &e[4][0]; // Error |
| c = &e[3][4]; // OK |
| c = &e[3][3]; // OK |
| |
| a = &u[4].a[9]; // Error |
| a = &u[4].a[10]; // Error |
| a = &u[3].a[9]; // OK |
| a = &u[3].a[10]; // OK |
| a = &u[3].a[11]; // Error, warns with -Warray-bounds, but only if VRP runs |
| |
| return 0; |
| } |
| |
| /* { dg-output "index 4 out of bounds for type 'S \\\[4\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ |
| /* { dg-output "\[^\n\r]*index 4 out of bounds for type 'S \\\[4\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ |
| /* { dg-output "\[^\n\r]*index 4 out of bounds for type 'int \\\[4\\\]\\\[4\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ |
| /* { dg-output "\[^\n\r]*index 4 out of bounds for type 'U \\\[4\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ |
| /* { dg-output "\[^\n\r]*index 4 out of bounds for type 'U \\\[4\\\]'\[^\n\r]*(\n|\r\n|\r)" } */ |
| /* { dg-output "\[^\n\r]*index 11 out of bounds for type 'int \\\[10\\\]'" } */ |
