1 // RUN: %clang -x c -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-C --implicit-check-not="error:"
2 // RUN: %clang -x c -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-C --implicit-check-not="error:"
3 // RUN: %clang -x c -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-C --implicit-check-not="error:"
4 // RUN: %clang -x c -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-C --implicit-check-not="error:"
5 
6 // RUN: %clangxx    -fsanitize=pointer-overflow -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-CPP --implicit-check-not="error:"
7 // RUN: %clangxx    -fsanitize=pointer-overflow -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-CPP --implicit-check-not="error:"
8 // RUN: %clangxx    -fsanitize=pointer-overflow -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-CPP --implicit-check-not="error:"
9 // RUN: %clangxx    -fsanitize=pointer-overflow -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-CPP --implicit-check-not="error:"
10 
11 #include <stdlib.h>
12 
13 int main(int argc, char *argv[]) {
14   char *base, *result;
15 
16   base = (char *)0;
17   result = base + 0;
18   // CHECK-C: {{.*}}.cpp:[[@LINE-1]]:17: runtime error: applying zero offset to null pointer
19 
20   base = (char *)0;
21   result = base + 1;
22   // CHECK: {{.*}}.cpp:[[@LINE-1]]:17: runtime error: applying non-zero offset 1 to null pointer
23 
24   base = (char *)1;
25   result = base - 1;
26   // CHECK: {{.*}}.cpp:[[@LINE-1]]:17: runtime error: applying non-zero offset to non-null pointer 0x{{.*}} produced null pointer
27 
28   return 0;
29 }
30