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enum escaping keywords

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  enum escaping keywords Philipp Kraus <philipp.kraus@flashpixx.de> - 2011-07-22 18:52 +0200
    Re: enum escaping keywords "Balog Pal" <pasa@lib.hu> - 2011-07-22 19:19 +0200
      Re: enum escaping keywords Philipp Kraus <philipp.kraus@flashpixx.de> - 2011-07-22 19:35 +0200
        Re: enum escaping keywords Victor Bazarov <v.bazarov@comcast.invalid> - 2011-07-22 13:52 -0400
    Re: enum escaping keywords James Kanze <james.kanze@gmail.com> - 2011-07-22 13:02 -0700
    Re: enum escaping keywords "James" <no@spam.invalid> - 2011-07-22 16:37 -0700

#8090 — enum escaping keywords

Hello,

I create a enum type with language codes like:
enum lang {
en,
it,
de,
asm,
or
}

but some codes are keywords (asm, or). How can I escape them, so that I 
can use them like
lang::or or lang::asm ?

Thanks

Phil

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#8091

"Philipp Kraus" <philipp.kraus@flashpixx.de>
> I create a enum type with language codes like:
> enum lang {
> en,
> it,
> de,
> asm,
> or
> }
>
> but some codes are keywords (asm, or). How can I escape them, so that I 
> can use them like
> lang::or or lang::asm ?

Those are reserved words. You can not use them as identifiers. chose a 
different form like Asm, asm_, l_asm, ... 

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#8094

On 2011-07-22 19:19:31 +0200, Balog Pal said:

> "Philipp Kraus" <philipp.kraus@flashpixx.de>
>> I create a enum type with language codes like:
>> enum lang {
>> en,
>> it,
>> de,
>> asm,
>> or
>> }
>> 
>> but some codes are keywords (asm, or). How can I escape them, so that I 
>> can use them like
>> lang::or or lang::asm ?
> 
> Those are reserved words. You can not use them as identifiers. chose a 
> different form like Asm, asm_, l_asm, ...

Is there no other solution !? Because the language codes are defined in 
the ISO 639, so I would like to use the defined
codes as a enum value. I wouldn't create a own value

Thx

Phil

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#8096

On 7/22/2011 1:35 PM, Philipp Kraus wrote:
> On 2011-07-22 19:19:31 +0200, Balog Pal said:
>
>> "Philipp Kraus" <philipp.kraus@flashpixx.de>
>>> I create a enum type with language codes like:
>>> enum lang {
>>> en,
>>> it,
>>> de,
>>> asm,
>>> or
>>> }
>>>
>>> but some codes are keywords (asm, or). How can I escape them, so that
>>> I can use them like
>>> lang::or or lang::asm ?
>>
>> Those are reserved words. You can not use them as identifiers. chose a
>> different form like Asm, asm_, l_asm, ...
>
> Is there no other solution !?

<shrug>  There probably is.  Instead of introducing an identifier that 
is illegal because it's a keyword, you could introduce a string literal...

 > Because the language codes are defined in
> the ISO 639, so I would like to use the defined
> codes as a enum value. I wouldn't create a own value

<shrug again>  I would like my variables to be named 'new', 'delete', 
and 'for'.  I can't, however.  So?

V
-- 
I do not respond to top-posted replies, please don't ask

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#8106

On Jul 22, 5:52 pm, Philipp Kraus <philipp.kr...@flashpixx.de> wrote:

> I create a enum type with language codes like:
> enum lang {
> en,
> it,
> de,
> asm,
> or
> }

> but some codes are keywords (asm, or). How can I escape them, so that I
> can use them like
> lang::or or lang::asm ?

You can't.  Note too that enum's don't introduce a new scope (at
least not in current C++), your enum introduces the keywords in
global scope.

The traditional solution to this is to use a simple prefix:

    enum lang {
        lang_en,
        lang_it,
        lang_de,
        lang_asm,
        lang_or
    };

or something like that.

--
James Kanze

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#8122

"Philipp Kraus" <philipp.kraus@flashpixx.de> wrote in message 
news:j0c9t4$e8p$1@online.de...
> Hello,
>
> I create a enum type with language codes like:
> enum lang {
> en,
> it,
> de,
> asm,
> or
> }
>
> but some codes are keywords (asm, or). How can I escape them, so that I 
> can use them like
> lang::or or lang::asm ?


struct lang {
    enum instruction {
        EN,
        IT,
        DE,
        ASM,
        OR
    };
};


? 

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