Re: #include and namespaces

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NNTP-Posting-Date	Thu, 01 Mar 2012 12:07:13 -0600
From	Gareth Owen <gwowen@gmail.com>
Newsgroups	comp.lang.c++
Subject	Re: #include and namespaces
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yatremblay@bel1lin202.(none) (Yannick Tremblay) writes:

> However what are peoples opinion of specific using directives in
> headers, e.g.: "using std::string;".  Should they be absolutely
> rejected as with "using namespace" or is there any situation under
> which they are tolerable?


frob.hpp
--------
std::vector<std::string> tokenize(const std::string&);


frob.cpp
--------

std::vector<std::string> tokenize(const std::string& in)
{
  using std::string; 
  using std::vector;
  
  vector<string> tokens;
  while(something) {
     string tmp1 = foo(in);
     string tmp2 = bar(in);
     vector<string> parts;
     tokens.push_back(etc....);
     // more code     
     // ....
  }

  return tokens;
}

I can't see why that should be even slighty intolerable...

Thread

#include and namespaces Luca Cerone <luca.cerone@gmail.com> - 2012-03-01 00:34 -0800
  Re: #include and namespaces Victor Bazarov <v.bazarov@comcast.invalid> - 2012-03-01 07:54 -0500
    Re: #include and namespaces Luca Cerone <luca.cerone@gmail.com> - 2012-03-01 06:38 -0800
      Re: #include and namespaces Victor Bazarov <v.bazarov@comcast.invalid> - 2012-03-01 14:26 -0500
        Re: #include and namespaces Luca Cerone <luca.cerone@gmail.com> - 2012-03-02 00:47 -0800
    Re: #include and namespaces yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2012-03-01 17:38 +0000
      Re: #include and namespaces Gareth Owen <gwowen@gmail.com> - 2012-03-01 18:07 +0000
        Re: #include and namespaces yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2012-03-01 18:52 +0000
          Re: #include and namespaces Paavo Helde <myfirstname@osa.pri.ee> - 2012-03-01 15:13 -0600
      Re: #include and namespaces "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-03-01 19:07 +0100
        Re: #include and namespaces yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2012-03-02 08:02 +0000
          Re: #include and namespaces "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-03-02 11:12 +0100
  Re: #include and namespaces Anand Hariharan <mailto.anand.hariharan@gmail.com> - 2012-03-01 11:20 -0800
    Re: #include and namespaces Victor Bazarov <v.bazarov@comcast.invalid> - 2012-03-01 14:30 -0500
      Re: #include and namespaces "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-03-01 20:53 +0100
        Re: #include and namespaces Miles Bader <miles@gnu.org> - 2012-03-02 09:51 +0900
        Re: #include and namespaces Daniel <danielaparker@gmail.com> - 2012-03-02 05:13 -0800
          Re: #include and namespaces Miles Bader <miles@gnu.org> - 2012-03-02 22:59 +0900
            Re: #include and namespaces Daniel <danielaparker@gmail.com> - 2012-03-02 10:31 -0800
              Re: #include and namespaces Miles Bader <miles@gnu.org> - 2012-03-03 10:54 +0900
              Re: #include and namespaces "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2012-03-03 08:53 +0100
  Re: #include and namespaces Juha Nieminen <nospam@thanks.invalid> - 2012-03-02 18:37 +0000
    Re: #include and namespaces Luca Cerone <luca.cerone@gmail.com> - 2012-03-03 04:22 -0800

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