SPDX-License-Identifier: CC-BY-SA-4.0 copyrights: - Copyright (C) 2020 embedded brains GmbH & Co. KG enabled-by: true functional-type: function links: - role: interface-function uid: ../if/warn-unused-result rationale: null references: [] requirement-type: functional text: | When the code is compiled with the GNU C compiler, and the ${../if/warn-unused-result:/name} macro is used as last part of a function declaration or attached to a function definition, and that function has a return type other than ``void``, and the returned value is not used, the macro shall cause the compiler to show a compiler warning. type: requirement