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Re: libobjc: should nil be an id?
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From: |
Riccardo Mottola |
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Subject: |
Re: libobjc: should nil be an id? |
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Date: |
Tue, 1 Aug 2017 09:47:22 +0200 |
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User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:49.0) Gecko/20100101 Firefox/49.0 SeaMonkey/2.46 |
HI,
Daniel Ferreira (theiostream) wrote:
In libobjc2, `nil` is defined as a null pointer cast to an `id`[1].
However, this breaks a lot of stuff targeted to Apple's libobjc which
relies on `nil` and `NULL` being interchangeable.
This is correct. nil is an "empty" object. Nil an empty class while NULL
is just an empty pointer, inherited from C.
https://developer.apple.com/documentation/objectivec/objective_c_runtime/null_values
I've experimented removing that cast from the runtime.h header and
this works fine for compiling WebKit. This breaks libs-base and
libs-gui, though, with stuff like:
please share the errors.
Riccardo