Hi all,

I'm a complete newbie to D, and tried the examples on the Wikipedia page. the example 2 shows a main function like this:

int main(string[] args)   // string is a type alias for const(char)[]

But, I get this error on compile:
hello.d:3: Error: identifier 'string' is not defined
hello.d:3: Error: string is used as a type
hello.d:3: function hello.main parameters must be main() or
main(char[][] args)

Is the guy writing the example wrong? Or is it my environment? (gdc
0.23, on Mac OSX 10.4)

Thanks,

-- 
Charles

Charles Brossollet wrote:
> Hi all,
> 
> I'm a complete newbie to D, and tried the examples on the Wikipedia
> page. the example 2 shows a main function like this:
> 
> int main(string[] args)   // string is a type alias for const(char)[]
> 
> But, I get this error on compile:
> hello.d:3: Error: identifier 'string' is not defined
> hello.d:3: Error: string is used as a type
> hello.d:3: function hello.main parameters must be main() or
> main(char[][] args)
> 
> Is the guy writing the example wrong? Or is it my environment? (gdc
> 0.23, on Mac OSX 10.4)

The string alias was added in DMD 1.016:
http://www.digitalmars.com/d/1.0/changelog.html#new1_016

GDC 0.21 was based on DMD 1.000, but I have no idea what GDC 0.23 is based on as I cannot see that info on the GDC page.

I suspect it's still based on DMD 1.000 and therefore has no aliases.

However, the aliases are defined in phobos and I suspect if you grab the latest phobos source and build it you will solve your problem.

Regan

Charles Brossollet wrote:

> I'm a complete newbie to D, and tried the examples on the Wikipedia
> page. the example 2 shows a main function like this:
> 
> int main(string[] args)   // string is a type alias for const(char)[]
> 
> But, I get this error on compile:
> hello.d:3: Error: identifier 'string' is not defined
> hello.d:3: Error: string is used as a type
> hello.d:3: function hello.main parameters must be main() or
> main(char[][] args)
> 
> Is the guy writing the example wrong? Or is it my environment? (gdc
> 0.23, on Mac OSX 10.4)

The example is using D 2.0, while GDC supports D 1.0 at the moment.
(the language was split into two different versions a while ago...)

int main(char[][] args)

--anders

Dnia Wed, 15 Aug 2007 18:24:19 +0200
chbrosso@free.fr (Charles Brossollet) napisał/a:

> Hi all,
> 
> I'm a complete newbie to D, and tried the examples on the Wikipedia page. the example 2 shows a main function like this:
> 
> int main(string[] args)   // string is a type alias for const(char)[]
> 
> But, I get this error on compile:
> hello.d:3: Error: identifier 'string' is not defined
> hello.d:3: Error: string is used as a type
> hello.d:3: function hello.main parameters must be main() or
> main(char[][] args)
> 
> Is the guy writing the example wrong? Or is it my environment? (gdc
> 0.23, on Mac OSX 10.4)

This is example of D 2, code. Who the hell published this on Wikipedia?

use:
int main(char[][] args) {
...
}

or put "alias char[] string;" before main


-- 
Witold Baryluk
MAIL: baryluk@smp.if.uj.edu.pl, baryluk@mpi.int.pl
JID: movax@jabber.autocom.pl

Regan Heath wrote:

> The string alias was added in DMD 1.016:
> http://www.digitalmars.com/d/1.0/changelog.html#new1_016
> 
> GDC 0.21 was based on DMD 1.000, but I have no idea what GDC 0.23 is based on as I cannot see that info on the GDC page.
> 
> I suspect it's still based on DMD 1.000 and therefore has no aliases.

GDC 0.23 is based on DMD 1.007, see http://gdcmac.sf.net

--anders

Anders F Björklund wrote:
> Charles Brossollet wrote:
> 
>> I'm a complete newbie to D, and tried the examples on the Wikipedia
>> page. the example 2 shows a main function like this:
>>
>> int main(string[] args)   // string is a type alias for const(char)[]
>>
>> But, I get this error on compile:
>> hello.d:3: Error: identifier 'string' is not defined
>> hello.d:3: Error: string is used as a type
>> hello.d:3: function hello.main parameters must be main() or
>> main(char[][] args)
>>
>> Is the guy writing the example wrong? Or is it my environment? (gdc
>> 0.23, on Mac OSX 10.4)
> 
> The example is using D 2.0, while GDC supports D 1.0 at the moment.
> (the language was split into two different versions a while ago...)
> 
> int main(char[][] args)

Technically I guess it's D 1.016 or D 2.0 code.  Am I correct about rebuilding phobos (in my reply to the OP) or will that fail utterly?

Regan

Anders F Björklund wrote:
> Regan Heath wrote:
> 
>> The string alias was added in DMD 1.016:
>> http://www.digitalmars.com/d/1.0/changelog.html#new1_016
>>
>> GDC 0.21 was based on DMD 1.000, but I have no idea what GDC 0.23 is based on as I cannot see that info on the GDC page.
>>
>> I suspect it's still based on DMD 1.000 and therefore has no aliases.
> 
> GDC 0.23 is based on DMD 1.007, see http://gdcmac.sf.net

Ahh, thanks.

I was looking here:
http://dgcc.sourceforge.net/#doc

I saw the link to gdcmac and gdcwin but I didn't follow them.

Regan

Regan Heath <regan@netmail.co.nz> wrote:

> Charles Brossollet wrote:
> > Hi all,
> > 
> > I'm a complete newbie to D, and tried the examples on the Wikipedia page. the example 2 shows a main function like this:
> > 
> > int main(string[] args)   // string is a type alias for const(char)[]
> > 
> > But, I get this error on compile:
> > hello.d:3: Error: identifier 'string' is not defined
> > hello.d:3: Error: string is used as a type
> > hello.d:3: function hello.main parameters must be main() or
> > main(char[][] args)
> > 
> > Is the guy writing the example wrong? Or is it my environment? (gdc
> > 0.23, on Mac OSX 10.4)
> 
> The string alias was added in DMD 1.016: http://www.digitalmars.com/d/1.0/changelog.html#new1_016
> 
> GDC 0.21 was based on DMD 1.000, but I have no idea what GDC 0.23 is based on as I cannot see that info on the GDC page.
> 
> I suspect it's still based on DMD 1.000 and therefore has no aliases.
> 
> However, the aliases are defined in phobos and I suspect if you grab the latest phobos source and build it you will solve your problem.

GDC 0.23 is based on DMD 1.007, so that explains my problem.

Thank you very much,

-- 
Charles

Regan Heath wrote:

>> The example is using D 2.0, while GDC supports D 1.0 at the moment.
>> (the language was split into two different versions a while ago...)
>>
>> int main(char[][] args)
> 
> Technically I guess it's D 1.016 or D 2.0 code.  Am I correct about rebuilding phobos (in my reply to the OP) or will that fail utterly?

You are right, it'll probably be fixed in GDC 0.24 then. (DMD 1.018)

The aliases can probably be added to the object.d manually meanwhile
alias char[] string;
alias wchar[] wstring;
alias dchar[] dstring;

--anders

Charles Brossollet escribió:
> Hi all,
> 
> I'm a complete newbie to D, and tried the examples on the Wikipedia
> page. the example 2 shows a main function like this:
> 
> int main(string[] args)   // string is a type alias for const(char)[]
> 
> But, I get this error on compile:
> hello.d:3: Error: identifier 'string' is not defined
> hello.d:3: Error: string is used as a type
> hello.d:3: function hello.main parameters must be main() or
> main(char[][] args)
> 
> Is the guy writing the example wrong? Or is it my environment? (gdc
> 0.23, on Mac OSX 10.4)
> 
> Thanks,
> 

string was added in DMD 1.016, which corresponds to GDC SVN revision 134. GDC 0.23 is only up to DMD 1.007, so get the latest GDC. You can find instructions in http://dsource.org/projects/tango/wiki/UnixInstallGdc, down to the "GDC Installation from source" section.

-- 
Carlos Santander Bernal