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/* n_11.c: Operator "defined" in #if or #elif directive. */
#include "defs.h"
#define MACRO_abc abc
#define MACRO_0 0
#define ZERO_TOKEN
main( void)
{
int abc = 1, a = 0;
fputs( "started\n", stderr);
/* 11.1: */
#if defined a
assert( a);
#else
assert( MACRO_abc);
#endif
#if defined (MACRO_abc)
assert( MACRO_abc);
#else
assert( a);
#endif
/* 11.2: "defined" is an unary operator whose result is 1 or 0. */
#if defined MACRO_0 * 3 != 3
fputs( "Bad handling of defined operator.\n", stderr);
exit( 1);
#endif
#if (!defined ZERO_TOKEN != 0) || (-defined ZERO_TOKEN != -1)
fputs( "Bad grouping of defined, -, ! in #if expression.\n", stderr);
exit( 1);
#endif
fputs( "success\n", stderr);
return 0;
}
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