1// RUN: %clang_cl_asan -O0 %s -Fe%t
2// RUN: not %run %t 2>&1 | FileCheck %s
3
4#include <windows.h>
5
6int main() {
7  char *buffer = new char;
8  buffer[-1] = 42;
9// CHECK: AddressSanitizer: heap-buffer-overflow on address [[ADDR:0x[0-9a-f]+]]
10// CHECK: WRITE of size 1 at [[ADDR]] thread T0
11// CHECK:   {{#0 .* main .*operator_new_left_oob.cc}}:[[@LINE-3]]
12// CHECK: [[ADDR]] is located 1 bytes to the left of 1-byte region
13// CHECK: allocated by thread T0 here:
14// CHECK:   {{#0 .* operator new }}
15// CHECK:   {{#1 .* main .*operator_new_left_oob.cc}}:[[@LINE-8]]
16  delete buffer;
17}
18