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CODING_STYLE: update mixed declaration rules 

Mixed declarations do come in handy at the top of #ifdef blocks.
Reluctantly allow this particular usage and suggest an alternative.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2015-06-19 09:28:13 +02:00
parent d4ba8cb0a1
commit 690a35e1f2
1 changed files with 9 additions and 4 deletions
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CODING_STYLE
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@ -87,10 +87,15 @@ Furthermore, it is the QEMU coding style.
5. Declarations
Mixed declarations (interleaving statements and declarations within blocks)
are not allowed; declarations should be at the beginning of blocks. In other
words, the code should not generate warnings if using GCC's
-Wdeclaration-after-statement option.
Mixed declarations (interleaving statements and declarations within
blocks) are generally not allowed; declarations should be at the beginning
of blocks.
Every now and then, an exception is made for declarations inside a
#ifdef or #ifndef block: if the code looks nicer, such declarations can
be placed at the top of the block even if there are statements above.
On the other hand, however, it's often best to move that #ifdef/#ifndef
block to a separate function altogether.
6. Conditional statements