Can lambda functions be templated?

Question

In C++11, is there a way to template a lambda function? Or is it inherently too specific to be templated?

I understand that I can define a classic templated class/fu

Answer 1

I've been playing with the latest clang version 5.0.1 compiling with the -std=c++17 flag and there is now some nice support for auto type parameters for lambdas:

#include 
#include 
#include 

int main() {
    auto slice = [](auto input, int beg, int end) {
        using T = decltype(input);
        const auto size = input.size();
        if (beg > size || end > size || beg < 0 || end < 0) {
            throw std::out_of_range("beg/end must be between [0, input.size())");
        }
        if (beg > end) {
            throw std::invalid_argument("beg must be less than end");
        }
        return T(input.begin() + beg, input.begin() + end);
    };
    auto v = std::vector { 1,2,3,4,5 };
    for (auto e : slice(v, 1, 4)) {
        std::cout << e << " ";
    }
    std::cout << std::endl;
}