forked from OSchip/llvm-project
45 lines
900 B
C++
45 lines
900 B
C++
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// RUN: %clang_cc1 -fsyntax-only -verify %s
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int f() __attribute__((warn_unused_result));
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struct S {
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void t() const;
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};
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S g1() __attribute__((warn_unused_result));
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S *g2() __attribute__((warn_unused_result));
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S &g3() __attribute__((warn_unused_result));
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void test() {
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f(); // expected-warning {{ignoring return value}}
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g1(); // expected-warning {{ignoring return value}}
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g2(); // expected-warning {{ignoring return value}}
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g3(); // expected-warning {{ignoring return value}}
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(void)f();
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(void)g1();
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(void)g2();
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(void)g3();
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if (f() == 0) return;
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g1().t();
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g2()->t();
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g3().t();
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int i = f();
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S s1 = g1();
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S *s2 = g2();
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S &s3 = g3();
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const S &s4 = g1();
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}
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struct X {
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int foo() __attribute__((warn_unused_result));
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};
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void bah() {
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X x, *x2;
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x.foo(); // expected-warning {{ignoring return value}}
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x2->foo(); // expected-warning {{ignoring return value}}
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}
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