Method length

source/util/bstring.cpp:433–442

}

int BString::length() const {
    if (data->len < 0) {
        if (data->str) {
            data->len = (int)strlen(data->str);
        } else {
            data->len = 0;
        }
    }
    return data->len;
}

void BString::remove(int index, int len) {
    makeWritable(0);