---
name: "Bio::DB::HTS::Constants"
section: "3pm"
platform: "linux"
package: "libbio-db-hts-perl"
version: "3.01-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Bio::DB::HTS::Constants"
---

# Bio::DB::HTS::Constants(3pm)

## LICENSE

Copyright \[2015-2018\] EMBL-European Bioinformatics Institute

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

```
     http://www.apache.org/licenses/LICENSE-2.0
```

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

## NAME

Bio::DB::HTS::Constants -- Constants for use with SAM/BAM

## SYNOPSIS

```
 use Bio::DB::HTS::Constants;
 my $pad_flag = BAM_CPAD;
```

## DESCRIPTION

This module exports several constants for use with the SAM/BAM module. See the SAM documentation for their interpretation.

- Cigar operations

  ```
    BAM_CIGAR_SHIFT
    BAM_CIGAR_MASK
    BAM_CMATCH
    BAM_CINS
    BAM_CDEL
    BAM_CREF_SKIP
    BAM_CSOFT_CLIP
    BAM_CHARD_CLIP
    BAM_CPAD
  ```

- FLAGS

  A hashref that maps flag values to human-readable names. For example:

  ```
   FLAGS->{0x0008} == 'M_UNMAPPED'
  ```

- RFLAGS

  The reverse of FLAGS:

  ```
   RFLAGS->{M_UNMAPPED} == 0x0008
  ```

## AUTHOR

Rishi Nag \<rishi@ebi.ac.uk\<gt\>

## SEE ALSO

Bio::Perl, Bio::DB::HTS, Bio::DB::Bam::Alignment