.. _exhale_struct_structmessage__filters_1_1message__traits_1_1HasHeader_3_01M_00_01decltype_07_07void_08_01M_1_1header_08_4: Template Struct HasHeader< M, decltype((void) M::header)> ========================================================= - Defined in :ref:`file__tmp_ws_src_message_filters_include_message_filters_message_traits.h` Inheritance Relationships ------------------------- Base Type ********* - ``public std::true_type`` Struct Documentation -------------------- .. doxygenstruct:: message_filters::message_traits::HasHeader< M, decltype((void) M::header)> :members: :protected-members: :undoc-members: