memstream_check_seek
ret2 = memstream_check_seek(f, len, SEEK_CUR);
ret3 = memstream_check_seek(f, len, SEEK_END);
ret &= memstream_check_seek(f, seeks[i].newpos, SEEK_CUR);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, 0, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, 0, SEEK_END);
ret &= memstream_check_seek(f, seeks[i].newpos, SEEK_CUR);
ret &= memstream_check_seek(fw, seeks[i].newpos, SEEK_CUR);
ret &= memstream_check_seek(f, slen, SEEK_CUR);
ret &= memstream_check_seek(f, slen, SEEK_END);
ret &= memstream_check_seek(f, 0, SEEK_CUR);
ret &= memstream_check_seek(f, 0, SEEK_END);
ret &= memstream_check_seek(f, 2048, SEEK_CUR);
ret &= memstream_check_seek(f, s, SEEK_CUR);
ret &= memstream_check_seek(f, s, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, len, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, len, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, 0, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, 0, SEEK_END);
ret = memstream_check_seek(f, len, SEEK_CUR);
ret2 = memstream_check_seek(f, len, SEEK_END);
ret = memstream_check_seek(f, len, SEEK_CUR);
ret2 = memstream_check_seek(f, len, SEEK_END);
ret = memstream_check_seek(f, 8, SEEK_CUR);
ret2 = memstream_check_seek(f, 8, SEEK_END);
ret = memstream_check_seek(f, 12, SEEK_CUR);
ret2 = memstream_check_seek(f, 12, SEEK_END);
ret = memstream_check_seek(f, 0, SEEK_CUR);
ret2 = memstream_check_seek(f, 0, SEEK_END);
ret2 = memstream_check_seek(f, len, SEEK_CUR);
ret3 = memstream_check_seek(f, len, SEEK_END);
ret2 = memstream_check_seek(f, len, SEEK_CUR);
ret3 = memstream_check_seek(f, len, SEEK_END);
ret2 = memstream_check_seek(f, len, SEEK_CUR);
ret3 = memstream_check_seek(f, len, SEEK_END);