`auto` keyword origins

[Adam D Ruppe]

On Monday, 26 June 2023 at 00:00:48 UTC, Alexander Tretyak wrote:
> I'm just curious when was the `auto` keyword introduced in D?

  What's New for D 0.137
Oct 24, 2005
New/Changed Features

     Added implicit type inference.

from: https://digitalmars.com/d/1.0/changelog1.html


Though the auto keyword was around earlier (it actually comes 
from old C), and technically doesn't mean exactly what you think 
it means - the `auto` keyword isn't what's magic, you can use 
many others in its place (most the time) like `const` and 
`immutable` among more - but the feature referred to is the type 
inference.

> I always thought that `auto` in D was taken from C++. But what 
> if it is opposite, i.e. C++11's `auto` was inspired by D's 
> `auto`?

It probably went both ways. The C++ proposal you linked is 
definitely earlier than D adopting the thing, and perhaps D's use 
of it helped prompt the C++ committee to adopt it too.