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## Function template range

boost::xpressive::range — Match a range of characters.

## Synopsis

    // In header: <boost/xpressive/regex_primitives.hpp>

    template<typename Char> unspecified range(Char ch_min, Char ch_max);

## Description

Match any character in the range [ch_min, ch_max].

Parameters: |
`ch_max` | The upper end of the range to match.
`ch_min` | The lower end of the range to match.