Re: [boost] [phoenix] comma woes

27 Mar 2011


      AMDG

On 03/26/2011 04:49 PM, Michael Caisse wrote:
...
On 03/26/2011 04:39 PM, Michael Caisse wrote:
...
On 03/26/2011 04:33 PM, Steven Watanabe wrote:
...
On 03/26/2011 04:26 PM, Michael Caisse wrote:
...
Unfortunately this is a common problem (statement.h). I agree that the
silent built-in should be changed.
I have had problems with std::endl and phoenix in the past... this
version compiles fine:
It doesn't compile with VS 2010.
Hmmmm...
I only have clang and gcc available right now. I'll take a look later
when I have access to an MS compiler.
michael
Hi Steven -
Hartmut just gave it a try on VS 2010 and it compiled/worked fine for
him. We are both using Phoenix V3 from the trunk. Are you on a different
version? What type of error(s) are you seeing?
trunk@70605
...
cl -EHsc -ID:/boost/trunk scratch.cpp
Microsoft (R) 32-bit C/C++ Optimizing Compiler Version 16.00.30319.01 
for 80x86
Copyright (C) Microsoft Corporation.  All rights reserved.
scratch.cpp
C:\Program Files (x86)\Microsoft Visual Studio 
10.0\VC\INCLUDE\ostream(604) : error C2248: 
'std::basic_ios<_Elem,_Traits>::basic_ios' : cannot access private 
member declared in class 'std::basic_ios<_Elem,_Traits>'
         with
         [
             _Elem=char,
             _Traits=std::char_traits<char>
         ]
         C:\Program Files (x86)\Microsoft Visual Studio 
10.0\VC\INCLUDE\ios(176): see declaration of 
'std::basic_ios<_Elem,_Traits>::basic_ios'
         with
         [
             _Elem=char,
             _Traits=std::char_traits<char>
         ]
         This diagnostic occurred in the compiler generated function 
'std::basic_ostream<_Elem,_Traits>::basic_ostream(const 
std::basic_ostream<_Elem,_Traits> &)
'
         with
         [
             _Elem=char,
             _Traits=std::char_traits<char>
         ]
...
type scratch.cpp
#include <boost/phoenix/phoenix.hpp>
#include <boost/phoenix/statement.hpp>
#include <iostream>
#include <vector>
#include <algorithm>
int main() {
     double sum = 0.0;
     int factor = 10;

     using namespace boost::phoenix;
     using namespace boost::phoenix::placeholders;

     std::vector<double> v(3);
     v[0] = 1.0; v[1] = 2.0; v[2] = 3.0;
     std::for_each(v.begin(), v.end(), (
                   ref(sum) += factor * _1,
                   std::cout << "Summed: " << ref(sum) << "\n" )
        );
     return 0;
}

In Christ,
Steven Watanabe