Trouble in converting C code to D

[Jacob Carlborg via Digitalmars-d-learn]

On 2015-04-12 11:53, Suliman wrote:

> But could you explain why if binding have next string:
>
> enum CPLErr
> {
>      CE_None = 0,
>      CE_Debug = 1,
>      CE_Warning = 2,
>      CE_Failure = 3,
>      CE_Fatal = 4
> }
>
> I can't use:
> if( GDALGetGeoTransform( hDataset, adfGeoTransform.ptr ) == CE_None )

In D you need to include the name of the enum type as well: 
CPLErr.CE_None. If you want to avoid that you can use aliases:

alias CE_None = CPLErr.CE_None

Or the with-statement:

with (CPLErr)
{
   // inside this block all the members of CPLErr can be accessed 
without prefixing them with CPLErr
   if( GDALGetGeoTransform( hDataset, adfGeoTransform.ptr ) == CE_None )
   {
   }
}

-- 
/Jacob Carlborg