1 // RUN: %clang_analyze_cc1 -triple x86_64-apple-darwin10 -analyzer-checker=core,alpha.security.ArrayBoundV2 -Wno-implicit-function-declaration -verify %s
2 // RUN: %clang_analyze_cc1 -triple i386-apple-darwin10 -analyzer-checker=core,alpha.security.ArrayBoundV2 -Wno-implicit-function-declaration -DM32 -verify %s
3 // expected-no-diagnostics
9 #define X86_ARRAY_SIZE (UINT_MAX/2 + 4)
11 void testIndexTooBig() {
12 char arr[X86_ARRAY_SIZE];
13 char *ptr = arr + UINT_MAX/2;
14 ptr += 2; // index shouldn't overflow
15 *ptr = 42; // no-warning
20 #define ARRAY_SIZE 0x100000000
22 void testIndexOverflow64() {
24 char *ptr = arr + UINT_MAX/2;
25 ptr += 2; // don't overflow 64-bit index
26 *ptr = 42; // no-warning
29 #define ULONG_MAX (~0ul)
30 #define BIG_INDEX (ULONG_MAX/16)
32 void testIndexTooBig64() {
33 char arr[ULONG_MAX/8-1];
34 char *ptr = arr + BIG_INDEX;
35 ptr += 2; // don't overflow 64-bit index
36 *ptr = 42; // no-warning
39 #define SIZE 4294967296
43 static unsigned buf[SIZE];
45 void testOutOfBounds() {
47 buf[SIZE-1] = 1; // no-warning
50 void testOutOfBoundsCopy1() {
51 memcpy(buf, addr, size); // no-warning
54 void testOutOfBoundsCopy2() {
55 memcpy(addr, buf, size); // no-warning