forked from OSchip/llvm-project
38 lines
1.4 KiB
C
38 lines
1.4 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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#if !__has_attribute(warning)
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#warning "warning attribute missing"
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#endif
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__attribute__((warning("don't call me!"))) int good0(void);
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__attribute__((warning)) // expected-error {{'warning' attribute takes one argument}}
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int
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bad0(void);
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int bad1(__attribute__((warning("bad1"))) int param); // expected-error {{'warning' attribute only applies to functions}}
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int bad2(void) {
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__attribute__((warning("bad2"))); // expected-error {{'warning' attribute cannot be applied to a statement}}
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}
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__attribute__((warning(3))) // expected-error {{'warning' attribute requires a string}}
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int
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bad3(void);
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__attribute__((warning("foo"), warning("foo"))) int good1(void);
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__attribute__((warning("foo"))) int good1(void);
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__attribute__((warning("foo"))) int good1(void) {}
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__attribute__((warning("foo"), error("foo"))) // expected-error {{'error' and 'warning' attributes are not compatible}}
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int
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bad4(void);
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// expected-note@-3 {{conflicting attribute is here}}
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/*
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* Note: we differ from GCC here; rather than support redeclarations that add
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* or remove this fn attr, we diagnose such differences.
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*/
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void foo(void); // expected-note {{previous declaration is here}}
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__attribute__((warning("oh no foo"))) void foo(void); // expected-error {{'warning' attribute does not appear on the first declaration}}
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