8edd3464af
WG14 adopted N2645 and WG21 EWG has accepted P2334 in principle (still subject to full EWG vote + CWG review + plenary vote), which add support for #elifdef as shorthand for #elif defined and #elifndef as shorthand for #elif !defined. This patch adds support for the new preprocessor directives.
33 lines
578 B
C
33 lines
578 B
C
// RUN: %clang_cc1 %s -Eonly -Werror=undef -verify
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extern int x;
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#if foo // expected-error {{'foo' is not defined, evaluates to 0}}
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#endif
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#ifdef foo
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#elifdef foo
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#endif
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#if defined(foo)
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#endif
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// PR3938
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#if 0
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#ifdef D
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#elifdef D
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#else 1 // Should not warn due to C99 6.10p4
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#endif
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#endif
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// rdar://9475098
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#if 0
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#else 1 // expected-warning {{extra tokens}}
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#endif
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// PR6852
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#if 'somesillylongthing' // expected-warning {{character constant too long for its type}} \
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// expected-warning {{multi-character character constant}}
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#endif
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