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/* u_1_19.c: Undefined behaviors on undefined #define and #undef syntax. */
/* { dg-do preprocess } */
/* u.1.19: A macro expanded to "defined" in #if expression. */
#define DEFINED defined
#if DEFINED DEFINED /* { dg-warning "this use of \"defined\" may not be portable| is expanded to \"defined\"" } */
#endif
#undef __linux__
#undef __arm__
#define __linux__ 1
#define HAVE_MREMAP defined(__linux__) && !defined(__arm__)
/* Wrong macro definition.
* This macro should be defined as follows.
* #if defined(__linux__) && !defined(__arm__)
* #define HAVE_MREMAP 1
* #endif
*/
#if HAVE_MREMAP /* { dg-warning "this use of \"defined\" may not be portable| is expanded to \"defined\"" } */
mremap();
#endif
/* u.1.20: Undefining __FILE__, __LINE__, __DATE__, __TIME__, __STDC__ or
"defined" in #undef directive. */
#undef __LINE__ /* { dg-error "undefining| shouldn't be undefined" } */
/* u.1.21: Defining __FILE__, __LINE__, __DATE__, __TIME__, __STDC__ or
"defined" in #define directive. */
#define __LINE__ 1234 /* { dg-error "defining| shouldn't be redefined" } */
#define defined defined /* { dg-error "cannot be used as a macro name| invalid macro name | shouldn't be defined" } */
#if defined defined
# error I am not a good preprocessor.
#endif
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