[webkit-dev] Proposal: Use #pragma once instead of header guards

[Anders Carlsson]

I think we should put it where we currently have the header guard. I think the pragma is easier to understand than a #ifndef/#define.

- Anders

> On Mar 9, 2016, at 5:33 PM, Brian Burg <bburg at apple.com> wrote:
> 
> Cool! It sounds like something good for new headers and drive-by cleanups, to start.
> To clarify, it would always go after the license block? Is the pragma name stable and understandable enough to paste everywhere?
> 
> 	-Brian
> 
>> On Mar 9, 2016, at 17:27, Anders Carlsson <andersca at apple.com> wrote:
>> 
>> Hi floks,
>> 
>> Currently we use 
>> 
>> #ifndef Header_h
>> #define Header_h
>> 
>> … 
>> 
>> #endif
>> 
>> I propose that we instead start using
>> 
>> #pragma once
>> 
>> which does the same thing. It can be faster on some compilers, is less error prone and is one line instead of three! All compilers we use support #pragma once.
>> 
>> Thoughts?
>> - Anders
>> 
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