This code:
#include <iostream>
#include <algorithm>
#include
using std::ostream;
class Value
{
public:
Value() : m_amount(0) {}
void IncreaseBy(int amount) { m_amount += amount; }
void WriteTo(ostream& stream) const { stream << m_amount; }
private:
int m_amount;
};
ostream& operator <<(ostream& stream, const Value& value)
{
value.WriteTo(stream);
return stream;
}
int main()
{
Value sum;
int values[] = { 1, 2, 3, 4, 5 };
std::for_each(values, values + 5, std::tr1::bind(&Value::IncreaseBy, sum));
std::cout << "The value is " << sum << std::endl;
return 0;
}
Produces compile error output like the following when compiled on Fedora
10 (Intel):
In file included from /usr/include/boost/tr1/functional.hpp:8,
from ValueSum.cpp:3:
/usr/include/boost/tr1/detail/config.hpp:60:26: error: no include path
in which to search for utility
/usr/include/boost/mem_fn.hpp: In member function ‘R& boost::_mfi::dm::operator()(T&) const [with R = void ()(int), T = Value]’:
/usr/include/boost/bind.hpp:221: instantiated from ‘R
boost::_bi::list1<A1>::operator()(boost::_bi::type<R>, F&, A&, long int)
[with R = void (&)(int), F = boost::_mfi::dm, A =
boost::_bi::list1, A1 = boost::_bi::value<Value>]’
/usr/include/boost/bind/bind_template.hpp:32: instantiated from
‘typename boost::_bi::result_traits::type boost::_bi::bind_t::operator()(A1&) [with A1 = int, R = void (&)(int), F =
boost::_mfi::dm, L =
boost::_bi::list1]’
/usr/lib/gcc/i386-redhat-linux/4.3.2/../../../../include/c++/4.3.2/bits/stl_algo.h:3791:
instantiated from ‘_Funct std::for_each(_IIter, _IIter, _Funct) [with
_IIter = int*, _Funct = boost::_bi::bind_t,
boost::_bi::list1 >]’
ValueSum.cpp:31: instantiated from here
/usr/include/boost/mem_fn.hpp:359: error: invalid use of non-static
member function
What is needed for the code to compile and run properly?
