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Bug#886885: marked as done (gcc-snapshot: "internal compiler error" for invalid input)

Your message dated Fri, 18 May 2018 19:47:13 +0200
with message-id <f216e21d-37c7-42b5-8bc3-61d7a2c9bc3d@debian.org>
and subject line Re: gcc-snapshot: "internal compiler error" for invalid input
has caused the Debian Bug report #886885,
regarding gcc-snapshot: "internal compiler error" for invalid input
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
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact owner@bugs.debian.org
immediately.)


-- 
886885: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=886885
Debian Bug Tracking System
Contact owner@bugs.debian.org with problems
--- Begin Message --- 
Package: gcc-snapshot
Version: 20180107-1
Severity: normal

Dear Maintainer,

I should have reported this upstream, but creating an account on GCC Bugzilla
takes a day. In the meantime...

This sample C++ program

$ cat broken.cc
struct Rect {
  int width;
};

void f() {
  const Rect rect = {11};  // This should be constexpr
  char str[1][rect.width+1] = {
    {"12345678901"},
  };
}


fails compilation with this error:

$ /usr/lib/gcc-snapshot/bin/g++ -std=c++17 -c broken.cc
broken.cc: In function 'void f()':
broken.cc:9:3: internal compiler error: in process_init_constructor_array, at
cp/typeck2.c:1318
   };
   ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-snapshot/README.Bugs> for instructions.


If I've understood the standard correctly, the expression used as the size of
the array should be a constexpr, and the compiler should complain about it.
Asking the user to file a bug report instead of fixing their code is the wrong response.

-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.14.0-1-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8), LANGUAGE=en_IE:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages gcc-snapshot depends on:
ii  binutils        2.29.1-12
ii  lib32z1         1:1.2.8.dfsg-5
ii  libc6           2.25-5
ii  libc6-dev       2.25-5
ii  libc6-dev-i386  2.25-5
ii  libc6-dev-x32   2.25-5
ii  libc6-i386      2.25-5
ii  libc6-x32       2.25-5
ii  libgc1c2        1:7.4.2-8
ii  libgmp10        2:6.1.2+dfsg-1.1
ii  libisl15        0.18-1
ii  libmpc3         1.0.3-2
ii  libmpfr4        3.1.6-1
ii  python          2.7.14-4
ii  zlib1g          1:1.2.8.dfsg-5

gcc-snapshot recommends no packages.

Versions of packages gcc-snapshot suggests:
ii  binutils [binutils-gold]  2.29.1-12

-- no debconf information

--- End Message ---
--- Begin Message --- 
Version: 8.1.0-1

fixed.

--- End Message ---
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