/*
 * call-seq: buffer_initial_length=(length)
 *
 * This sets the initial length of the buffer to +length+, if +length+ > 0,
 * otherwise its value isn't changed.
 */
static VALUE cState_buffer_initial_length_set(VALUE self, VALUE buffer_initial_length)
{
    long initial_length;
    GET_STATE(self);
    Check_Type(buffer_initial_length, T_FIXNUM);
    initial_length = FIX2LONG(buffer_initial_length);
    if (initial_length > 0) {
        state->buffer_initial_length = initial_length;
    }
    return Qnil;
}