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From: Keith Thompson <kst-u@mib.org>
Newsgroups: comp.lang.c++
Subject: Re: An example: code to list exports of a Windows DLL.
Date: Tue, 20 Aug 2019 14:21:06 -0700
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Ian Collins <ian-news@hotmail.com> writes:
> On 20/08/2019 21:18, Keith Thompson wrote:
[...]
>> Can you demonstrate that?  I haven't been able to do so, with several
>> versions of g++ (up to and including a bleeding-edge version I built
>> from source a week and a half ago).  Here's the test case I used:
>>
>> #include <iostream>
>> int main() {
>>      const int foo$bar = 42;
>>      std::cout << foo$bar << "\n";
>> }
>>
>> compiled with "g++ -Wpedantic -std=c++17".  No warning from any version
>> I have on my system.
>
> Try clang:
>
> $ clang++ -Wpedantic -std=c++17 /tmp/x.cc
> /tmp/x.cc:3:18: warning: '$' in identifier
> [-Wdollar-in-identifier-extension]
>     const int foo$bar = 42;
>                  ^
> /tmp/x.cc:4:21: warning: '$' in identifier
> [-Wdollar-in-identifier-extension]
>     std::cout << foo$bar << "\n";
>                     ^
> 2 warnings generated.
> $ clang++ --version
> clang version 8.0.1-svn363027-1~exp1~20190611211629.77 (branches/release_80)

Yes, I had already tried clang.  It allows '$' in identifiers, but warns
about them in conforming mode, which agrees with my interpretation of
what the C++17 standard requires.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */