clang/test/Sema/array-bounds-ptr-arith.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

// RUN: %clang_cc1 -verify -Warray-bounds-pointer-arithmetic %s

// Test case from PR10615
struct ext2_super_block{
  unsigned char s_uuid[8]; // expected-note {{declared here}}
};
void* ext2_statfs (struct ext2_super_block *es,int a)
{
	 return (void *)es->s_uuid + sizeof(int); // no-warning
}
void* broken (struct ext2_super_block *es,int a)
{
	 return (void *)es->s_uuid + 80; // expected-warning {{refers past the end of the array}}
}

// Test case reduced from PR11594
struct S { int n; };
void pr11594(struct S *s) {
  int a[10];
  int *p = a - s->n;
}