On Tue, Feb 3, 2009 at 12:29 PM, Robert Jones <robertgbjones@gmail.com> wrote:

On Tue, Feb 3, 2009 at 9:45 AM, Igor R <boost.lists@gmail.com> wrote:

The following code crashes in for_each when trying to output the 1st pair. What's wrong with it?

Thanks!

namespace bl = boost::lambda;

std::map<std::string, std::string> temp;
temp["a"] = "1";
temp["b"] = "2";
const std::map<std::string, std::string> attrs(temp);
typedef std::pair<std::string, std::string> string_pair;
std::stringstream stream;
std::for_each(attrs.begin(), attrs.end(),
stream << bl::bind(&string_pair::first, bl::_1) << bl::bind(&string_pair::second, bl::_1));

_______________________________________________
Boost-users mailing list
Boost-users@lists.boost.org
http://lists.boost.org/mailman/listinfo.cgi/boost-users

What's the problem? This works for me - full source follows.

#include "boost/lambda/lambda.hpp"
#include "boost/lambda/bind.hpp"
#include <algorithm>
#include <map>
#include <iostream>
#include <sstream>

int main( )

{
namespace bl = boost::lambda;
std::map<std::string, std::string> temp;
temp["a"] = "1";
temp["b"] = "2";
const std::map<std::string, std::string> attrs(temp);
typedef std::pair<std::string, std::string> string_pair;
std::stringstream stream;
std::for_each(attrs.begin(), attrs.end(),
stream << bl::bind(&string_pair::first, bl::_1) << bl::bind(&string_pair::second, bl::_1));
}

Using Visual Studio 2005 & Boost 1.36

Rob.

--