boost::urls::grammar::lut_chars::operator() :: Boost Libraries Documentation

# boost::urls::grammar::lut_chars::operator()

Return true if ch is in the character set.

## Synopsis

Declared in `<boost/url/grammar/lut_chars.hpp>`

    constexpr
    bool
    operator()(char ch) const noexcept;

## Description

This function returns true if the character `ch` is in the set, otherwise it returns false.

## Complexity

Constant.

## Exception Safety

Throws nothing.

## Return Value

`true` if `ch` is in the set.

## Parameters

Name | Description
--- | ---
ch | The character to test.

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