Re: [boost] Guidence on #pragma once

Subject: Re: [boost] Guidence on #pragma once
From: Josh Juran (jjuran_at_[hidden])
Date: 2018-11-25 12:56:25

On Nov 25, 2018, at 7:46 AM, Olaf van der Spek via Boost <boost_at_[hidden]> wrote:

> On Sat, Nov 24, 2018 at 2:01 AM Andrey Semashev via Boost
> <boost_at_[hidden]> wrote:
>> since `#pragma once` is non-standard and not reliable, there's little
> 
> Who has a sane reproducible test case showing the claimed unreliability?
> 
> #pragma once is simpler then include guards.

I once thought the same, until I was informed it was non-standard by the founder of the Nitrogen C++ library.  I found out for myself that it was unreliable, in the Metrowerks compiler I was using at the time.

Josh