Re: C++ diaries...

[Keith Thompson <kst-u@mib.org>]

Keith Thompson <kst-u@mib.org> writes:
> Olivier Henley <olivier.henley@gmail.com> writes:
> [...]
>> I already said so, all of the above. The thing, 'straight enums',
>> should have worked properly day one. The concept of enum in C++ is
>> arguably deceitful, wrong, broken, you name it.
> [...]
>
> The concept of enum in C++ is not what you wanted it to be.
>
> C's enum types are derived directly from C's.  In C, which does not

Typo, I meant to say that C++'s enum types are derived directly from C's.

> support overloading of identifiers, enumeration constants are of type
> int.  For example:
>
>     enum color { red, green, blue };
>
> defined "enum color" as a discrete type, and "blue" as a constant
> equivalent to a literal 2.  C++ tightens this up slightly by making
> the constants be of the enum type (mostly, I think, to allow the
> constants to be used with overloaded functions), but they're still
> freely assignable to and from integer types.

Correction, C++ doesn't allow implicit conversion from an integer type
to an enum type.  (C does.)

[...]

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */