typedef struct svector *svector_t;
svector_t svector_create (size_t);
void svector_free (svector_t);
char *svector_push_back (svector_t, char *);
char *svector_at (svector_t, size_t);
typedef struct svector *svector_t;
svector_t svector_create (size_t);
void svector_free (svector_t);
char *svector_push_back (svector_t, char *);
char *svector_at (svector_t, size_t);