clang/test/Preprocessor/pragma_assume_nonnull.c

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2 // RUN: %clang_cc1 -E %s | FileCheck %s
   3
   4 // CHECK: #pragma clang assume_nonnull begin
   5 #pragma clang assume_nonnull begin
   6
   7 int bar(int * ip) { return *ip; }
   8
   9 // CHECK: #pragma clang assume_nonnull end
  10 #pragma clang assume_nonnull end
  11
  12 int foo(int * _Nonnull ip) { return *ip; }
  13
  14 int main() {
  15    return bar(0) + foo(0); // expected-warning 2 {{null passed to a callee that requires a non-null argument}}
  16 }