void Pipe::prepend_filter(Filter* filter) { if(m_outputs->message_count() != 0) throw Invalid_State("Cannot call Pipe::prepend_filter after start_msg"); do_prepend(filter); }
OssIndex __seqof1::prepend(__seqof1 *seq) { return do_prepend(seq); }
void Pipe::prepend(Filter* filter) { do_prepend(filter); }
OssIndex __seqof1::prepend(const component & val) { __seqof1_member *newrec = new __seqof1_member(val); if (!newrec) return OSS_NOINDEX; return do_prepend(newrec); }