boost::lambda bind expressions can't get bind to string's empty() to work
- by navigator
Hi,
I am trying to get the below code snippet to compile. But it fails with:
error C2665: 'boost::lambda::function_adaptor::apply' : none of the 8 overloads could convert all the argument types. Sepcifying the return type when calling bind does not help.
Any idea what I am doing wrong?
Thanks.
#include <boost/lambda/lambda.hpp>
#include <boost/lambda/bind.hpp>
#include <string>
#include <map>
int main()
{
namespace bl = boost::lambda;
typedef std::map<int, std::string> types;
types keys_and_values;
keys_and_values[ 0 ] = "zero";
keys_and_values[ 1 ] = "one";
keys_and_values[ 2 ] = "Two";
std::for_each(
keys_and_values.begin(),
keys_and_values.end(),
std::cout << bl::constant("Value empty?: ") << std::boolalpha <<
bl::bind(&std::string::empty,
bl::bind(&types::value_type::second, _1)) << "\n");
return 0;
}
