* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "portable.h" /* execinfo when available */
* All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "portable.h" /* execinfo when available */
-#define show_string(data) show_it(data, "s")
+#define show_string(data) \
+ if (1) { \
+ const char *show_string_data = (data); \
+ show_it(show_string_data ? show_string_data : "(null)", "s"); \
+ } else (void)0
#define show_int(data) show_it(data, "d")
#define show_double(data) show_it(data, "f")
#define show_int(data) show_it(data, "d")
#define show_double(data) show_it(data, "f")