1*74989affSNico Weber // RUN: %clangxx  -O0 %s -o %t
2*74989affSNico Weber // RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s
3*74989affSNico Weber // RUN: %env_tool_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
4*74989affSNico Weber 
5*74989affSNico Weber // REQUIRES: stable-runtime && !ubsan && !darwin
6*74989affSNico Weber 
7*74989affSNico Weber #include <stdio.h>
8*74989affSNico Weber 
9*74989affSNico Weber extern "C" void *reallocarray(void *, size_t, size_t);
10*74989affSNico Weber 
main()11*74989affSNico Weber int main() {
12*74989affSNico Weber   void *p = reallocarray(nullptr, -1, 1000);
13*74989affSNico Weber   // CHECK: {{ERROR: .*Sanitizer: reallocarray parameters overflow: count \* size \(.* \* 1000\) cannot be represented in type size_t}}
14*74989affSNico Weber 
15*74989affSNico Weber   printf("reallocarray returned: %zu\n", (size_t)p);
16*74989affSNico Weber   // CHECK-NULL: reallocarray returned: 0
17*74989affSNico Weber 
18*74989affSNico Weber   return 0;
19*74989affSNico Weber }
20