diff options
author | Alex Bennée <alex.bennee@linaro.org> | 2023-08-29 17:15:20 +0100 |
---|---|---|
committer | Alex Bennée <alex.bennee@linaro.org> | 2023-08-30 14:57:44 +0100 |
commit | 4b77429adbecf970d0ebb7213b99b82771b6368f (patch) | |
tree | a3ffd1653d483435ab1b258fe4fc63604aac6ed5 | |
parent | bb16cb45192b344c8bd5e3c2f423b96fb438ed29 (diff) |
docs/style: permit inline loop variables
I've already wasted enough of my time debugging aliased variables in
deeply nested loops. While not scattering variable declarations around
is a good aim I think we can make an exception for stuff used inside a
loop.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Acked-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20230829161528.2707696-5-alex.bennee@linaro.org>
-rw-r--r-- | docs/devel/style.rst | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/docs/devel/style.rst b/docs/devel/style.rst index 3cfcdeb9cd..2f68b50079 100644 --- a/docs/devel/style.rst +++ b/docs/devel/style.rst @@ -204,7 +204,14 @@ Declarations Mixed declarations (interleaving statements and declarations within blocks) are generally not allowed; declarations should be at the beginning -of blocks. +of blocks. To avoid accidental re-use it is permissible to declare +loop variables inside for loops: + +.. code-block:: c + + for (int i = 0; i < ARRAY_SIZE(thing); i++) { + /* do something loopy */ + } Every now and then, an exception is made for declarations inside a #ifdef or #ifndef block: if the code looks nicer, such declarations can |