Coding Style: Reverse XMAS tree declarations ?

[David Laight]

From: Lino Sanfilippo
> Sent: 04 November 2016 20:07
...
> In this case it is IMHO rather the declaration + initialization that makes
> "bar" hard to find at one glance, not the use of RXT. You could do something like
> 
>  	[longish list of reverse xmas tree identifiers...]
>  	struct foobarbaz *qux;
>  	struct foo *bar;
> 
>  	bar = longish_function(args, ...);
> 
> to increase readability.
> 
> Personally I find it more readable to always use a separate line for initializations
> by means of functions (regardless of whether the RXT scheme is used or not).

I find it best to only use initialisers for 'variables' that are (mostly) constant.
If something need to be set to NULL in case a search fails, set it to NULL
just before the loop.
Don't put initialisation on the declaration 'because you can'.

Difficulty in spotting the type of a variable is why (IMHO) you should
but all declarations at the top of a function
(except, maybe, temporaries needed for a few lines).

	David