boost::urls::params_base::contains

Return true if a matching key exists

Synopsis

Declared in <include/boost/url/params_base.hpp>

bool
contains(
    core::string_view key,
    ignore_case_param ic = = {}) const noexcept;

Description

This function examines the parameters in the container to find a match for the specified key. The comparison is performed as if all escaped characters were decoded first.

assert( url_view( "?first=John&last=Doe" ).params().contains( "first" ) );

Linear in `this->buffer().size()`.

Throws nothing.

Parameters

Name Description
key

The key to match. By default, a case-sensitive comparison is used.

ic

An optional parameter. If the value ignore_case is passed here, the comparison is case-insensitive.

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