#define __SDS_H
#include <sys/types.h>
+#include <stdarg.h>
typedef char *sds;
sds sdscpylen(sds s, char *t, size_t len);
sds sdscpy(sds s, char *t);
+sds sdscatvprintf(sds s, const char *fmt, va_list ap);
#ifdef __GNUC__
sds sdscatprintf(sds s, const char *fmt, ...)
__attribute__((format(printf, 2, 3)));