#include <err.h>
#define die(...) errx(EXIT_FAILURE, __VA_ARGS__);
+#define FREE(pointer) do { \
+ if (pointer != NULL) { \
+ free(pointer); \
+ pointer = NULL; \
+ } \
+} \
+while (0)
char *convert_ucs_to_utf8(char *input);
char *convert_utf8_to_ucs2(char *input, int *real_strlen);