contains

Return true if a matching key exists

Synopsis


                bool
contains(
    pct_string_view key,
    ignore_case_param ic) noexcept;

Declared in file <boost/url/impl/params_encoded_base.hpp> at line 122

Description

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

Example


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

Complexity

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

Exception Safety

Exceptions thrown on invalid input.