PS -- In case you didn't notice, IUP is written for C and is meant to interface with the C language, not assembly language. The C language does not support nil, so if you tell programmers to use null instead of nil, you will screw it all up.
nil is not null. It is not treated like null. nil is treated like an object that is empty. nil is not a parameter. Apple's documentation discusses this as well, I suggest you read it. On 1/13/2017 at 2:31 PM, Eric Wing <ewmail...@gmail.com> wrote: >On 1/12/17, Andrew Robinson <arobinso...@cox.net> wrote: >>>I think your understanding of NULL and nil is completely wrong here >>>and you are creating a straw-man. As I already explained, both are >>>defined as 0. There is no difference to the computer. >> >> You are wrong here, and I think that says all I need to say about the rest >> of >> your "argument". Nil is defined as an object, and null as a zero. Read all >> about it here: >> http://www.codingexplorer.com/swift-optionals-declaration-unwrapping-and-binding/ >> >> You don't unwrap or bind strings, you unwrap or bind objects. A nil object >> represents an object which has not been instantiated. It is not zero and >> never >> has been. >> >> Best Regards, >> >> Andrew >> > >You are lost in the abstraction layer and are missing what’s actually >going on at the machine level. > >Let me spell it out for you: >- Cocoa/CocoaTouch is implemented in Objective-C. >- I’m implementing the IUP backend in Objective-C. >- Objective-C is a pure superset of C. > > >In objc.h: nil is defined as: ># define nil __DARWIN_NULL > > >In C, NULL is generally provided by stddef.h, which goes into platform >headers. This will lead you to sys/_types/_null.h >#define NULL __DARWIN_NULL > >See? Both nil and NULL are the same. > > >In sys/_types/_types.h, you’ll find the definition for _DARWIN_NULL >#define __DARWIN_NULL 0 > >See? The value is 0. > > >Thanks, >Eric > >------------------------------------------------------------------------------ >Developer Access Program for Intel Xeon Phi Processors >Access to Intel Xeon Phi processor-based developer platforms. >With one year of Intel Parallel Studio XE. >Training and support from Colfax. >Order your platform today. http://sdm.link/xeonphi >_______________________________________________ >Iup-users mailing list >Iup-users@lists.sourceforge.net >https://lists.sourceforge.net/lists/listinfo/iup-users ------------------------------------------------------------------------------ Developer Access Program for Intel Xeon Phi Processors Access to Intel Xeon Phi processor-based developer platforms. With one year of Intel Parallel Studio XE. Training and support from Colfax. Order your platform today. http://sdm.link/xeonphi _______________________________________________ Iup-users mailing list Iup-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/iup-users
