41 lines
1.6 KiB
C++
41 lines
1.6 KiB
C++
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// RUN: %clang_cc1 -x c++ -verify -fsyntax-only %s
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void f1();
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struct S {
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static void f2();
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};
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extern void f3() __attribute__((weak_import));
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struct S2 {
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static void f4() __attribute__((weak_import));
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};
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bool f5();
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bool f6(int);
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void bar() {
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bool b;
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b = f1; // expected-warning {{address of function 'f1' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}}
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if (f1) {} // expected-warning {{address of function 'f1' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}}
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b = S::f2; // expected-warning {{address of function 'S::f2' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}}
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if (S::f2) {} // expected-warning {{address of function 'S::f2' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}}
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b = f5; // expected-warning {{address of function 'f5' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}} \
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expected-note {{suffix with parentheses to turn this into a function call}}
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b = f6; // expected-warning {{address of function 'f6' will always evaluate to 'true'}} \
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expected-note {{prefix with the address-of operator to silence this warning}}
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// implicit casts of weakly imported symbols are ok:
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b = f3;
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if (f3) {}
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b = S2::f4;
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if (S2::f4) {}
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}
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