Coding Style for local variables

[Konstantin Ananyev]

> The coding style guide says:
> 
> "Variables should be declared at the start of a block of code rather than in the middle. The exception to this is when the variable is
> const in which case the declaration must be at the point of first use/assignment. Declaring variable inside a for loop is OK."
> 
> Since DPDK switched to C11, variables can be declared where they are used, which reduces the risk of using effectively uninitialized
> variables. "Effectively uninitialized" means initialized to 0 or NULL where declared, to silence any compiler warnings about the use of
> uninitialized variables.
> 
> Can we please agree to remove the recommendation/requirement to declare variables at the start of a block of code?

I know that modern C standards allow to define variable in the middle.
But I am strongly opposed to allow that in DPDK coding style.
Such practice makes code much harder to read and understand (at least for me).
Konstantin