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