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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/no-return
rationale: |
The GNU C compiler can optimize such a function without regard to what would
happen if it ever did return. Declaring a function ${../if/no-return:/name}
also avoids spurious warnings of uninitialized variables.
references: []
requirement-type: functional
text: |
When the code is compiled with the GNU C compiler starting at version 2.5
or the ``__cplusplus`` symbol is defined with version ``201103L`` or higher
or the ``__STDC_VERSION__`` symbol is defined with version ``201112L``
or higher,
and the ${../if/no-return:/name} macro is used as first part of a
function declaration or definition,
the ${../if/no-return:/name} macro shall
inform the compiler that this function does not return when called.
type: requirement
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