llvm-project/clang/test/Sema/warn-main-returns-bool-lite...

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// RUN: %clang_cc1 -std=c++11 -fsyntax-only -Wmain -verify %s
// expected-note@+1 {{previous definition is here}}
int main() {
return 0;
} // no-warning
// expected-error@+1 {{redefinition of 'main'}}
int main() {
return 1.0;
} // no-warning
int main() {
bool b = true;
return b; // no-warning
}
int main() {
return true; // expected-warning {{bool literal returned from 'main'}}
}