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Bug#833931: marked as done (c++: Fail to build when <stdnoreturn.h> and the noreturn keyword is used)

Your message dated Thu, 07 Feb 2019 03:13:19 +0000
with message-id <E1gra7r-000G9u-7I@fasolo.debian.org>
and subject line Bug#920171: Removed package(s) from unstable
has caused the Debian Bug report #833931,
regarding c++: Fail to build when <stdnoreturn.h> and the noreturn keyword is used
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

(NB: If you are a system administrator and have no idea what this
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misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
833931: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=833931
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: g++-6
Version: 6.1.1-11

I ran into this issue while trying to prepare the coz profiler for
Debian.

The <stdnoreturn.h> header file seem to be inefficient when using cc and
clang, be ignored causing an build error when using c++.

I found this example code on
<URL: http://en.cppreference.com/w/c/language/_Noreturn >, and it fail
to build with c++, but build with both cc and clang:

% cat > y.c
#include <stdlib.h>
#include <stdio.h>
#include <stdnoreturn.h>
 
// causes undefined behavior if i <= 0
// exits if i > 0
noreturn void stop_now(int i) // or _Noreturn void stop_now(int i)
{
    if (i > 0) exit(i);
}
 
int main(void)
{
  puts("Preparing to stop...");
  stop_now(2);
  puts("This code is never executed.");
}
% gcc y.c 
y.c: In function 'stop_now':
y.c:10:1: warning: 'noreturn' function does return
 }
 ^
% ./a.out 
Preparing to stop...
% c++ y.c 
y.c:7:1: error: 'noreturn' does not name a type
 noreturn void stop_now(int i) // or _Noreturn void stop_now(int i)
 ^~~~~~~~
y.c: In function 'int main()':
y.c:15:13: error: 'stop_now' was not declared in this scope
   stop_now(2);
             ^
% clang y.c 
y.c:10:1: warning: function declared 'noreturn' should not return [-Winvalid-noreturn]
}
^
1 warning generated.
%

Perhaps something that should be fixed?

-- 
Happy hacking
Petter Reinholdtsen

--- End Message ---
--- Begin Message --- 
Version: 6.5.0-2+rm

Dear submitter,

as the package gcc-6 has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/920171

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Scott Kitterman (the ftpmaster behind the curtain)

--- End Message ---
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