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SPDX-License-Identifier: CC-BY-SA-4.0
copyrights:
- Copyright (C) 2020 embedded brains GmbH (http://www.embedded-brains.de)
enabled-by: true
links:
- role: requirement-refinement
uid: ../if/packed
non-functional-type: interface
rationale: |
Note: The 4.1, 4.2 and 4.3 series of GCC ignore the packed attribute
on bit-fields of type char.
references: []
requirement-type: non-functional
text: |
When the code is compiled with the GNU C compiler,
and the ${../if/packed:/name} macro is used as last part of a
structure member declaration,
and the ``aligned`` attribute or ${../if/aligned:/name} macro
is not used on this structure member,
the ${../if/packed:/name} macro shall cause the structure member
to be aligned at one bit for a bit-field member and one byte otherwise.
type: requirement
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