# Typedef TraceBack
Traceback value.

Defined in | <seqan/align.h>
Signature | `struct TraceBack_; typedef SimpleType<unsigned char, TraceBack_> TraceBack.`

## Overview

The ValueSize of `TraceBack` is 3. The values are defined in the following way:

- 0 - Diagonal Move
- 1 - Horizontal Move
- 2 - Vertical Move

#### Dox Sources

    /*!
     * @typedef TraceBack
     *
     * @headerfile <seqan/align.h>
     *
     * @brief Traceback value.
     *
     * @signature struct TraceBack_;
     * @signature typedef SimpleType<unsigned char, TraceBack_> TraceBack.
     *
     * The ValueSize of <tt>TraceBack</tt> is 3. The values are defined in the
     * following way:
     *
     * <ul> <li>0 - Diagonal Move</li> <li>1 - Horizontal Move</li> <li>2 - Vertical
     * Move</li> </ul>
     */