sds sdscat(sds s, char *t);
sds sdscpylen(sds s, char *t, size_t len);
sds sdscpy(sds s, char *t);
+
+#ifdef __GNUC__
+sds sdscatprintf(sds s, const char *fmt, ...)
+ __attribute__((format(printf, 2, 3)));
+#else
sds sdscatprintf(sds s, const char *fmt, ...);
+#endif
+
sds sdstrim(sds s, const char *cset);
sds sdsrange(sds s, long start, long end);
void sdsupdatelen(sds s);
int sdscmp(sds s1, sds s2);
sds *sdssplitlen(char *s, int len, char *sep, int seplen, int *count);
void sdstolower(sds s);
+void sdstoupper(sds s);
#endif