38 lines
1006 B
Perl
38 lines
1006 B
Perl
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/* u_1_19.t: Undefined behaviors on undefined #define and #undef syntax. */
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/* u.1.19: A macro expanded to "defined" in #if expression. */
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#define DEFINED defined
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#if DEFINED DEFINED
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#endif
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#undef __linux__
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#undef __arm__
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#define __linux__ 1
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#define HAVE_MREMAP defined(__linux__) && !defined(__arm__)
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/* Wrong macro definition.
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* This macro should be defined as follows.
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* #if defined(__linux__) && !defined(__arm__)
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* #define HAVE_MREMAP 1
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* #endif
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*/
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#if HAVE_MREMAP
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mremap();
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#endif
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/* u.1.20: Undefining __FILE__, __LINE__, __DATE__, __TIME__, __STDC__ or
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"defined" in #undef directive. */
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#undef __LINE__
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/* 16; or other undefined result. */
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__LINE__;
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/* u.1.21: Defining __FILE__, __LINE__, __DATE__, __TIME__, __STDC__ or
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"defined" in #define directive. */
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#define __LINE__ 1234
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/* 18; or other undefined result. */
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__LINE__;
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#define defined defined
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#if defined defined
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# error I am not a good preprocessor.
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#endif
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