1 // RUN: %clang -x c -fsanitize=pointer-overflow %s -o %t
2 // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-C
3 // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-C
4
5 // RUN: %clangxx -fsanitize=pointer-overflow %s -o %t
6 // RUN: %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-NOTYPE,CHECK-NOTYPE-CPP
7 // RUN: %env_ubsan_opts=report_error_type=1 %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK-TYPE,CHECK-TYPE-CPP
8
9 #include <stdlib.h>
10
main(int argc,char * argv[])11 int main(int argc, char *argv[]) {
12 char *base, *result;
13
14 base = (char *)0;
15 result = base + 0;
16 // CHECK-NOTYPE-C: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
17 // CHECK-TYPE-C: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-offset {{.*}}summary.cpp:[[@LINE-2]]:17
18 // CHECK-NOTYPE-CPP-NOT: SUMMARY:
19 // CHECK-TYPE-CPP-NOT: SUMMARY:
20
21 base = (char *)0;
22 result = base + 1;
23 // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
24 // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-with-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
25
26 base = (char *)1;
27 result = base - 1;
28 // CHECK-NOTYPE: SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior {{.*}}summary.cpp:[[@LINE-1]]:17
29 // CHECK-TYPE: SUMMARY: UndefinedBehaviorSanitizer: nullptr-after-nonzero-offset {{.*}}summary.cpp:[[@LINE-2]]:17
30
31 return 0;
32 }
33