boost::urls::url_base::c_str Return the url as a null-terminated string Synopsis Declared in header <boost/url/url_base.hpp> char const* c_str() const noexcept; Description This function returns a pointer to a null terminated string representing the url, which may contain percent escapes. assert( std::strlen( url( "http://www.example.com" ).c_str() ) == 22 ); Constant. Throws nothing.