clang/test/Sema/warn-main-returns-bool-literal.cpp

   1 // RUN: %clang_cc1 -std=c++11 -fsyntax-only -Wmain -verify %s
   2
   3 // expected-note@+1 {{previous definition is here}}
   4 int main() {
   5   return 0;
   6 }  // no-warning
   7
   8 // expected-error@+1 {{redefinition of 'main'}}
   9 int main() {
  10   return 1.0;
  11 }  // no-warning
  12
  13 int main() {
  14   bool b = true;
  15   return b;  // no-warning
  16 }
  17
  18 int main() {
  19   return true;  // expected-warning {{bool literal returned from 'main'}}
  20 }