Local type inference with auto is in C2X

[Joseph Myers]

On Thu, 3 Nov 2022, Florian Weimer via Gcc wrote:

> My main worry is that both Clang and GCC still enable implicit ints by
> default.  This means that auto variables have type int always, and that
> can subtly alter the meaning of programs.  The only indication that this
> has happened in a code base is a warning that went away (!).  I don't
> like that.

My expectation is that the old use of auto as a storage class specifier is 
actually very rare in C code, so this particular sub-case (auto with no 
type specifier meaning implicit int) is even rarer and there isn't much 
porting to be done for it (unlike for the rest of implicit int).

-- 
Joseph S. Myers
joseph@codesourcery.com