I'm trying to call a function in one file from another.
In particular I take the the winsamp.d demo ( where WinMain() calls myWinMain()
) and I move the myWinMain() fucntion to a new file (winapp.d) and lable it
'export'. Both files compile, but the linker complains that myWinMain() is not
found. More confusingly, if I leave myWinMain() in the winsamp.d file as well as
putting it in the second file, the linker complains that it CAN find both
myWinMain() functions.

So how do I link a function across files??

Karl Bochert wrote:

> I'm trying to call a function in one file from another.
> In particular I take the the winsamp.d demo ( where WinMain() calls
> myWinMain() ) and I move the myWinMain() fucntion to a new file (winapp.d)
> and lable it 'export'. Both files compile, but the linker complains that
> myWinMain() is not found. More confusingly, if I leave myWinMain() in the
> winsamp.d file as well as putting it in the second file, the linker
> complains that it CAN find both myWinMain() functions.
> 
> So how do I link a function across files??

Note that export don't make much sense in this case. A function in one file can be used in the other if the file is imported:

file1.d
------------
module file1;

void foo() {}

file2.d
-----------
module file2;

private import file1;

main()
{
  foo();
}



-- 
Lars Ivar Igesund
blog at http://larsivi.net
DSource & #D: larsivi

In article <e8ar15$14l5$2@digitaldaemon.com>, Lars Ivar Igesund says...
>
>Karl Bochert wrote:
>
>> I'm trying to call a function in one file from another.
>> In particular I take the the winsamp.d demo ( where WinMain() calls
>> myWinMain() ) and I move the myWinMain() fucntion to a new file (winapp.d)
>> and lable it 'export'. Both files compile, but the linker complains that
>> myWinMain() is not found. More confusingly, if I leave myWinMain() in the
>> winsamp.d file as well as putting it in the second file, the linker
>> complains that it CAN find both myWinMain() functions.
>> 
>> So how do I link a function across files??
>
>Note that export don't make much sense in this case. A function in one file can be used in the other if the file is imported:
>
>file1.d
>------------
>module file1;
>
>void foo() {}
>
>file2.d
>-----------
>module file2;
>
>private import file1;
>
>main()
>{
>  foo();
>}
>
>
>
>-- 
>Lars Ivar Igesund
>blog at http://larsivi.net
>DSource & #D: larsivi

Which brings up another question:

As I understand it, if file1 were in a subdirectory, it would be: import subdir.file1

Suppose file1.d is in a parallel directory -- i.e. '..\utildir\file1.d' ? or in the parent directory '..' ?

Karl Bochert wrote:

> In article <e8ar15$14l5$2@digitaldaemon.com>, Lars Ivar Igesund says...
>>
>>Karl Bochert wrote:
>>
>>> I'm trying to call a function in one file from another.
>>> In particular I take the the winsamp.d demo ( where WinMain() calls
>>> myWinMain() ) and I move the myWinMain() fucntion to a new file
>>> (winapp.d) and lable it 'export'. Both files compile, but the linker
>>> complains that myWinMain() is not found. More confusingly, if I leave
>>> myWinMain() in the winsamp.d file as well as putting it in the second
>>> file, the linker complains that it CAN find both myWinMain() functions.
>>> 
>>> So how do I link a function across files??
>>
>>Note that export don't make much sense in this case. A function in one file can be used in the other if the file is imported:
>>
>>file1.d
>>------------
>>module file1;
>>
>>void foo() {}
>>
>>file2.d
>>-----------
>>module file2;
>>
>>private import file1;
>>
>>main()
>>{
>>  foo();
>>}
>>
>>
>>
>>--
>>Lars Ivar Igesund
>>blog at http://larsivi.net
>>DSource & #D: larsivi
> 
> Which brings up another question:
> 
> As I understand it, if file1 were in a subdirectory, it would be: import subdir.file1
> 
> Suppose file1.d is in a parallel directory -- i.e. '..\utildir\file1.d' ? or in the parent directory '..' ?

You will then need to pass the root dir for the import to the compiler, for instance -I.. or -I../utildir

-- 
Lars Ivar Igesund
blog at http://larsivi.net
DSource & #D: larsivi