37 lines
789 B
C
37 lines
789 B
C
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/* n_10.c: #if, #elif, #else and #endif pp-directive. */
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#include "defs.h"
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#define MACRO_0 0
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#define MACRO_1 1
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main( void)
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{
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fputs( "started\n", stderr);
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/* 10.1: */
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/* Note: an undefined identifier in #if expression is replaced to 0. */
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#if a
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assert( a);
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#elif MACRO_0
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assert( MACRO_0);
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#elif MACRO_1 /* Valid block */
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assert( MACRO_1);
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#else
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assert( 0);
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#endif
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/* 10.2: Comments must be processed even if in skipped #if block. */
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/* At least tokenization of string literal and character constant is necessary
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to process comments, e.g. /* is not a comment mark in string literal.
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*/
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#ifdef UNDEFINED
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/* Comment */
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"in literal /* is not a comment"
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#endif
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fputs( "success\n", stderr);
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return 0;
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}
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