Method is_null

src/fl/stl/json.h:240–240

Type queries

    // Type queries
    bool is_null() const FL_NOEXCEPT { return mValue ? mValue->is_null() : true; }
    bool is_bool() const FL_NOEXCEPT { return mValue && mValue->is_bool(); }
    bool is_int() const FL_NOEXCEPT { return mValue && (mValue->is_int() || mValue->is_bool()); }
    bool is_float() const FL_NOEXCEPT { return mValue && mValue->is_float(); }