// returns file pointers to beginning of alignments
bool Rewind(void);
// sets an explicit merge order, regardless of the BAM files' SO header tag
- void SetExplicitMergeOrder(BamMultiReader::MergeOrder order);
+ bool SetExplicitMergeOrder(BamMultiReader::MergeOrder order);
// sets the target region of interest
bool SetRegion(const BamRegion& region);
// sets the target region of interest