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Re: C++20??? (Was: Preliminary version of new regex matcher for gawk now available)

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On 27-7-2024 18:36, Kenny McCormack wrote:
> In article <66a350e9$0$706$14726298@news.sunsite.dk>,
> Aharon Robbins <arnold@skeeve.com> wrote:
> ...
>>> My system complains about -std=c++20 so I cannot test it. (I think
>>> I'll wait for a native C release.)
>>
>> That will be a while. It's not hard to build current GCC from scratch
>> on a Linux system.
> 
> I doubt that.  I wouldn't have the first clue about how to do it, and I'm
> certainly no Linux newbie.
> 
> Maybe it (getting/building GCC) should be part of your "bootstrap" script?
> 
> Also, is there an easy way to find out if your current GCC is "good enough" ?
> 
> The system I am typing this on says it has GCC 9.4?  Will that work?
> 

from: https://stackoverflow.com/a/68545455/724039
C++20 features are available since GCC 8.

To enable C++20 support, add the command-line parameter

-std=c++20

For G++ 9 and earlier use

-std=c++2a

Or, to enable GNU extensions in addition to C++20 features, add

-std=gnu++20

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Preliminary version of new regex matcher for gawk now available arnold@skeeve.com (Aharon Robbins) - 2024-07-25 09:44 +0000
  Re: Preliminary version of new regex matcher for gawk now available Janis Papanagnou <janis_papanagnou+ng@hotmail.com> - 2024-07-25 14:05 +0200
    Re: Preliminary version of new regex matcher for gawk now available arnold@skeeve.com (Aharon Robbins) - 2024-07-26 07:31 +0000
      C++20??? (Was: Preliminary version of new regex matcher for gawk now available) gazelle@shell.xmission.com (Kenny McCormack) - 2024-07-27 16:36 +0000
        Re: C++20??? (Was: Preliminary version of new regex matcher for gawk now available) Luuk <luuk@invalid.lan> - 2024-08-10 15:42 +0200
          Re: C++20??? (Was: Preliminary version of new regex matcher for gawk now available) gazelle@shell.xmission.com (Kenny McCormack) - 2024-08-10 13:50 +0000
    Re: Preliminary version of new regex matcher for gawk now available Ben Bacarisse <ben@bsb.me.uk> - 2024-07-26 10:57 +0100

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