forked from OSchip/llvm-project
39 lines
948 B
C++
39 lines
948 B
C++
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// RUN: %clang_cc1 -Wreturn-type -fsyntax-only -std=c++11 -verify %s
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class A {
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public:
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A(const A&);
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};
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struct S {
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int i;
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double d;
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virtual void B() {}
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};
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union U {
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struct {
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int i;
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virtual void B() {} // Can only do this in C++11
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} t;
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};
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struct S2 {
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int i;
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double d;
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};
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extern "C" U f3( void ); // expected-warning {{'f3' has C-linkage specified, but returns user-defined type 'U' which is incompatible with C}}
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extern "C" S f0(void); // expected-warning {{'f0' has C-linkage specified, but returns user-defined type 'S' which is incompatible with C}}
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extern "C" A f4( void ); // expected-warning {{'f4' has C-linkage specified, but returns user-defined type 'A' which is incompatible with C}}
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// These should all be fine
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extern "C" S2 f5( void );
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extern "C" void f2( A x );
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extern "C" void f6( S s );
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extern "C" void f7( U u );
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extern "C" double f8(void);
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extern "C" long long f11( void );
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extern "C" A *f10( void );
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