how to wrapp string numeric conversion methods, c++11

StringTransformers.cpp

#include <iostream>
#include <functional>
#include <string>


template<class T>
T getFromString(const std::string& value, std::function<T(const std::string&)> f)
{
    return f(value);
}

auto getIntFromString   = std::bind(getFromString<int>,   std::placeholders::_1, [](const std::string& s)->int  {std::stoi(s);});
auto getFloatFromString = std::bind(getFromString<float>, std::placeholders::_1, [](const std::string& s)->float{std::stof(s);});

int main() {
    std::cout << getIntFromString("12") << std::endl;
    std::cout << getFloatFromString("12.4556") << std::endl;
    return 0;
}