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 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 13 int main(int argc, char **argv) { 14 return foo(argv[1]) == 0; 15 } 16
