Re: [boost] Current Guidance on Compiler Warnings?

Subject: Re: [boost] Current Guidance on Compiler Warnings?
From: Gavin Lambert (boost_at_[hidden])
Date: 2018-11-26 22:15:31

On 27/11/2018 09:40, Emil Dotchevski wrote:
> This is not what unsigned is for. You should generally use signed ints even
> if the value can't be negative.

Why?  Other than being less typing (which is, I think, the real 
mistake), what reason is there for this?

> Fact: the cast does not do the same thing as the implicit conversion.
> 
> (The cast converts to the type you specify in the cast. The implicit
> conversion converts to the target type.)

No, the implicit conversion promotes to *some* type (usually one of int, 
unsigned, int64_t, or uint64_t), which is not necessarily the type of 
either.