Re: Porting to 64Bit -descriptionForInstanceMethod:

[David Chisnall]

On 18 Jun 2019, at 13:47, Andreas Höschler <ahoesch@smartsoft.de> wrote:
> 
> Hi David,
> 
>> - descriptionForInstanceMethod: is gone.  Don't use it, use the runtime 
>> functions instead.
> 
> Thanks for the hint. 
> 
> Where would I find a list (the declaration) of these runtime functions on 
> MacOSX and GNUstep? Are they even identically named? I guess no!?
> 

Here is the top hit for a DDG search for ‘Objective-C Runtime’:

https://developer.apple.com/documentation/objectivec/objective-c_runtime?language=objc

It provides you with the Objective-C Runtime API Reference.  The GNUstep 
runtime also implements this interface and is source compatible (it also 
implements some non-portable functions, which I would suggest that you avoid).  
You can find these all in objc/runtime.h.  

The method that you are probably looking for is protocol_getMethodDescription.

David