Boost C++ Libraries

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Function is_alpha

boost::algorithm::is_alpha — is_alpha predicate

// In header: <boost/algorithm/string/classification.hpp>


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

Construct the is_classified predicate for the ctype_base::alpha category.

Parameters:

Loc

A locale used for classification

Returns:

An instance of the is_classified predicate