no-outofbounds.c revision 65d39251ff57b8e33cf6d3a7fcc6aa1c6f8cdc68
1// RUN: %clang_cc1 -analyzer-check-objc-mem -analyze -analyzer-checker=core.experimental -analyzer-store=basic -verify %s 2// RUN: %clang_cc1 -analyzer-check-objc-mem -analyze -analyzer-checker=core.experimental -analyzer-store=region -verify %s 3 4//===----------------------------------------------------------------------===// 5// This file tests cases where we should not flag out-of-bounds warnings. 6//===----------------------------------------------------------------------===// 7 8void f() { 9 long x = 0; 10 char *y = (char*) &x; 11 char c = y[0] + y[1] + y[2]; // no-warning 12 short *z = (short*) &x; 13 short s = z[0] + z[1]; // no-warning 14} 15 16void g() { 17 int a[2]; 18 char *b = (char*)a; 19 b[3] = 'c'; // no-warning 20} 21 22typedef typeof(sizeof(int)) size_t; 23void *malloc(size_t); 24void free(void *); 25 26void field() { 27 struct vec { size_t len; int data[0]; }; 28 struct vec *a = malloc(sizeof(struct vec) + 10); 29 a->len = 10; 30 a->data[1] = 5; // no-warning 31} 32