-__must_check __malloc void *para_realloc(void *p, size_t size);
-__must_check __malloc void *para_malloc(size_t size);
-__must_check __malloc void *para_calloc(size_t size);
-__must_check __malloc char *para_strdup(const char *s);
+__must_check __malloc void *adu_realloc(void *p, size_t size);
+__must_check __malloc void *adu_malloc(size_t size);
+__must_check __malloc void *adu_calloc(size_t size);
+__must_check __malloc char *adu_strdup(const char *s);
+__must_check __malloc char *adu_strcat(char *a, const char *b);