[Bug 1751199] Re: g++-5 fails to compile c++11 code with -std=c++11 on Ubuntu 17.10

[Abhishek]

*** This bug is a duplicate of bug 1739778 ***
    https://bugs.launchpad.net/bugs/1739778

** This bug has been marked a duplicate of bug 1739778
   G++ 5.4 does not compile some C++11 code without workaround flag

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https://bugs.launchpad.net/bugs/1751199

Title:
  g++-5 fails to compile c++11 code with -std=c++11 on Ubuntu 17.10

Status in gcc-5 package in Ubuntu:
  New

Bug description:
  How to reproduce:
  =================

  1. Install g++-5 with `sudo apt install g++-5`
  2. Try compiling the following C++11 code:

  cat << END > a.cpp
  #include <iostream>
  #include <string>
  int main()
  { std::cout<<std::stoi("1234"); return 0; }
  END
  g++-5 -std=c++11 a.cpp

  3. What happened: Fails with error:

  a.cpp: In function ‘int main()’:
  a.cpp:4:17: error: ‘stoi’ is not a member of ‘std’
      { std::cout<<std::stoi("1234"); return 0; }
                   ^

  4. What is expected: No error.  Successful compilation.

  Version information:
  ====================
  lsb_release -rd
  Description:	Ubuntu 17.10
  Release:	17.10

  g++-5 --version
  g++-5 (Ubuntu 5.5.0-1ubuntu2) 5.4.1 20171010

  
  Additional comments:
  ====================
  I tested the same code in Ubuntu 16.04 with g++-5 (g++-5 (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609) and it compiles fine on it.

  ProblemType: Bug
  DistroRelease: Ubuntu 17.10
  Package: g++-5 5.5.0-1ubuntu2
  ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13
  Uname: Linux 4.13.0-32-generic x86_64
  ApportVersion: 2.20.7-0ubuntu3.7
  Architecture: amd64
  CurrentDesktop: ubuntu:GNOME
  Date: Fri Feb 23 11:19:16 2018
  EcryptfsInUse: Yes
  InstallationDate: Installed on 2018-01-02 (51 days ago)
  InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
  SourcePackage: gcc-5
  UpgradeStatus: No upgrade log present (probably fresh install)

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