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Hi,

I have alot of constants that I need in regular char and in wchar_t
form

so instead of writing

#define const1 "value1"
#define const1wide L"value1"

I want to make some other macro that would save time from duplicate
definitions.

so I was thinking of

#define const1 "value1"

and another macro
#define WIDE(str) (##L str)

this almost works except for that the L has to stick to the "

I tried alot of other forms but I still can`t reach the result I want.

I don`t know if this is doable..

Any ideas?

Karim napsal:
> Hi,
>
> I have alot of constants that I need in regular char and in wchar_t
> form
>
> so instead of writing
>
> #define const1 "value1"
> #define const1wide L"value1"
>
> I want to make some other macro that would save time from duplicate
> definitions.
>
> so I was thinking of
>
> #define const1 "value1"
>
> and another macro
> #define WIDE(str) (##L str)
>
> this almost works except for that the L has to stick to the "
>
> I tried alot of other forms but I still can`t reach the result I want.
>
> I don`t know if this is doable..
>
> Any ideas?

#define WIDE(str) (L##str)

On 2007-01-08 22:31, Karim wrote:
> Hi,
>
> I have alot of constants that I need in regular char and in wchar_t
> form
>
> so instead of writing
>
> #define const1 "value1"
> #define const1wide L"value1"
>
> I want to make some other macro that would save time from duplicate
> definitions.
>
> so I was thinking of
>
> #define const1 "value1"
>
> and another macro
> #define WIDE(str) (##L str)

I have not tested this but I found it in an example in the MSDN-
documentation and it seems to be what you are looking for:

#define WIDEN2(x) L ## x
#define WIDEN(x) WIDEN2(x)

and the usage would be

#define const1 "value"
WIDEN(value)

Don't ask me how it works, I think I know but as I said, I have not
tested it.

--
Erik Wikström

This doesn`t work.

Cause say you have the two lines.
#define const1 "value1"
#define WIDE(str) (L##str)

so in the code when you would type for ex. : someFunc(WIDE(const1));

the compiler would paste in LSTR which results in compile error.

Thanks.

Ondra Holub wrote:
> Karim napsal:
> > Hi,
> >
> > I have alot of constants that I need in regular char and in wchar_t
> > form
> >
> > so instead of writing
> >
> > #define const1 "value1"
> > #define const1wide L"value1"
> >
> > I want to make some other macro that would save time from duplicate
> > definitions.
> >
> > so I was thinking of
> >
> > #define const1 "value1"
> >
> > and another macro
> > #define WIDE(str) (##L str)
> >
> > this almost works except for that the L has to stick to the "
> >
> > I tried alot of other forms but I still can`t reach the result I want.
> >
> > I don`t know if this is doable..
> >
> > Any ideas?
>
> #define WIDE(str) (L##str)

Erik Wikström wrote:
> On 2007-01-08 22:31, Karim wrote:
>> Hi,
>>
>> I have alot of constants that I need in regular char and in wchar_t
>> form
>>
>> so instead of writing
>>
>> #define const1 "value1"
>> #define const1wide L"value1"
>>
>> I want to make some other macro that would save time from duplicate
>> definitions.
>>
>> so I was thinking of
>>
>> #define const1 "value1"
>>
>> and another macro
>> #define WIDE(str) (##L str)
>
> I have not tested this but I found it in an example in the MSDN-
> documentation and it seems to be what you are looking for:
>
> #define WIDEN2(x) L ## x
> #define WIDEN(x) WIDEN2(x)
>
> and the usage would be
>
> #define const1 "value"
> WIDEN(value)
>
> Don't ask me how it works, I think I know but as I said, I have not
> tested it.

Too bad. I think the OP asked for something like this:

#define const1 "value"
#define const1wide WIDEN(const1)

V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask

I was actually responding to Ondra`s suggestion. Thanks Erik, it does
work.


Victor Bazarov wrote:
> Erik Wikström wrote:
> > On 2007-01-08 22:31, Karim wrote:
> >> Hi,
> >>
> >> I have alot of constants that I need in regular char and in wchar_t
> >> form
> >>
> >> so instead of writing
> >>
> >> #define const1 "value1"
> >> #define const1wide L"value1"
> >>
> >> I want to make some other macro that would save time from duplicate
> >> definitions.
> >>
> >> so I was thinking of
> >>
> >> #define const1 "value1"
> >>
> >> and another macro
> >> #define WIDE(str) (##L str)
> >
> > I have not tested this but I found it in an example in the MSDN-
> > documentation and it seems to be what you are looking for:
> >
> > #define WIDEN2(x) L ## x
> > #define WIDEN(x) WIDEN2(x)
> >
> > and the usage would be
> >
> > #define const1 "value"
> > WIDEN(value)
> >
> > Don't ask me how it works, I think I know but as I said, I have not
> > tested it.
>
> Too bad. I think the OP asked for something like this:
>
> #define const1 "value"
> #define const1wide WIDEN(const1)
>
> V
> --
> Please remove capital 'A's when replying by e-mail
> I do not respond to top-posted replies, please don't ask