1 // RUN: %clangxx -fsanitize=returns-nonnull-attribute %s -O3 -o %t
2 // RUN: %run %t foo
3 // RUN: %run %t 2>&1 | FileCheck %s
4
5 __attribute__((returns_nonnull)) char *foo(char *a);
6
foo(char * a)7 char *foo(char *a) {
8 return a;
9 // CHECK: nonnull.cpp:[[@LINE+2]]:1: runtime error: null pointer returned from function declared to never return null
10 // CHECK-NEXT: nonnull.cpp:[[@LINE-5]]:16: note: returns_nonnull attribute specified here
11 }
12
main(int argc,char ** argv)13 int main(int argc, char **argv) {
14 return foo(argv[1]) == 0;
15 }
16