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## Function is_cntrl

boost::algorithm::is_cntrl — is_cntrl predicate

## Synopsis

    unspecified is_cntrl(const std::locale & Loc = std::locale());

## Description

Construct the `is_classified` predicate for the `ctype_base::cntrl` category.

Parameters: |

`Loc` | A locale used for classification

Returns: | An instance of the `is_classified` predicate

| Copyright © 2002-2004 Pavol Droba