GCC FAIL WITH BASIC STL EXAMPLE

[trincheira]

Hello Guys,

I am developing some applications that extensively uses STL. I plan to use
the
traits -> iterator_traits to get information about which type do I need to
return.
Unfortunately, I've been experienced some problems to use such
functionality.

This simple test code was extracted from the SGI-STL website, but oddly
enough it doesn't compile:
#include <iostream>
#include <vector>
#include <iterator>
#include <algorithm>

template <class InputIterator>
std::iterator_traits<InputIterator>::value_type
last_value(InputIterator first, InputIterator last) {
std::iterator_traits<InputIterator>::value_type result = *first;
for (++first; first != last; ++first)
result = *first;
return result;
}

using namespace std;

int main()
{
std::vector<double> teste(10);
fill_n(teste.begin(),10,1.2);
double result = last_value(teste.begin(),teste.end());
return 0;
}

The error response is:
argdeduction.cpp:8: error: expected constructor, destructor, or type
conversion before ‘last_value’
argdeduction.cpp: In function ‘int main()’:
argdeduction.cpp:21: error: ‘last_value’ was not declared in this scope

Hopefully,
Trincheira
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