37     int length;  member
80     s->length = 0;  in strbuf_reset()
92     return s->size - s->length - 1;  in strbuf_empty_length()
98         strbuf_resize(s, s->length + len);  in strbuf_ensure_empty_length()
103     return s->buf + s->length;  in strbuf_empty_ptr()
108     s->length += len;  in strbuf_extend_length()
113     return s->length;  in strbuf_length()
119     s->buf[s->length++] = c;  in strbuf_append_char()
124     s->buf[s->length++] = c;  in strbuf_append_char_unsafe()
130     memcpy(s->buf + s->length, c, len);  in strbuf_append_mem()
131     s->length += len;  in strbuf_append_mem()
136     memcpy(s->buf + s->length, c, len);  in strbuf_append_mem_unsafe()
137     s->length += len;  in strbuf_append_mem_unsafe()
142     s->buf[s->length] = 0;  in strbuf_ensure_null()
148         *len = s->length;  in strbuf_string()