[MacRuby-devel] Using 'Pointer.new_with_type'

[Brian Chapados]

mkstemp is defined in the standard C library.  To use it, you would
need to define a new bridged function in MacRuby on the fly. I don't
think there is a way to do this right now.

As a work-around, you could wrap the C function calls in methods
defined in an Obj-C class and build a framework.  Then you would be
able to load the framework in MacRuby and call those methods.

On Fri, Feb 6, 2009 at 12:24 AM, Michael Winterstein
<parzival at mindspring.com> wrote:
>
> On Feb 5, 2009, at 10:53 AM, Michael Winterstein wrote:
>
>> Hi all,
>>
>> Is there a particular framework that's required in order to use
>> 'Pointer.new_with_type'?
>>
>> I'm using the trunk (build 809) and it's apparently not available in
>> either my Xcode project or in macirb.
>>
>> Is there an alternative method for working with pointers?
>>
>>
>>
>> My specific case is that I want to call the C function mkstemp.
>> Is this what I should be doing? :
>>
>> @tmpfInfo += "/"+"resynch.fileinfo.XXXXXX"
>> tmptr = Pointer.new_with_type('*')
>> tmptr.assign(@tmpfInfo)
>> fd_tmpInfo = mkstemp(tmptr)
>> tmpInfoFileHandle = NSFileHandle.initWithFileDescriptor(@fd_tmpInfo)
>>
>> Michael_______________________________________________
>> MacRuby-devel mailing list
>> MacRuby-devel at lists.macosforge.org
>> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
>
> Scratch some of that ... I didn't have the right file and now I do have
> Pointer.new_with_type.
>
> But I'm still wondering what's the correct approach.  This code still gives
> me "undefined method" errors on mkstemp.
>
> Michael
>
>
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