Method if_string

include/boost/json/value.hpp:1479–1485

Return a pointer to the underlying @ref string. If `this->kind() == kind::string`, returns a pointer to the underlying object. Otherwise, returns `nullptr`. @par Example The return value is used in both a boolean context and to assign a variable: @code if( auto p = jv.if_string() ) return *p; @endcode @par Compl

        @{
    */
    string const*
    if_string() const noexcept
    {
        if(kind() == json::kind::string)
            return &str_;
        return nullptr;
    }

    string*
    if_string() noexcept