Re: Local Functions...

From:

"Victor Bazarov" <v.Abazarov@comAcast.net>

Newsgroups:

comp.lang.c++

Date:

Wed, 29 Aug 2007 13:27:56 -0400

Message-ID:

<fb4aar$s7a$1@news.datemas.de>

Alf P. Steinbach wrote:

* Victor Bazarov:

werasm wrote:

#include <algorithm>
#include <vector>

int main()
{
  struct local
  {
    static void exec( int ){}
  };

  std::vector<int> v( 10, 10 );
  std::for_each( v.begin(), v.end(), &local::exec );

  return 0;
}

Regards,

Werner.

Could anybody please comment on whether this is standard compliant.

It's not.

Chapter & verse, please.

You made me think a bit (tsk-tsk).

[basic.link]/2, last bullet item.
[temp.arg.type]/2.

Since the name of a member of the local type cannot be referred to
from other modules (or from other scopes in the same module), it has
no linkage. As such it cannot appear as a type template argument.
However, in this particular situation, if the type of the second
argument of 'for_each' template is deduced to be "a function pointer"
and not "a member of 'local' class", then it's probably OK. I don't
know which what it would fall, though.

V
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