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/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   iter.cpp                                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2020/04/14 20:02:19 by charles           #+#    #+#             */
/*   Updated: 2020/12/11 15:45:09 by charles          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include <iostream>

template<typename T>
void iter(T* ptr, size_t len, void (*f)(T const& x))
{
    for (size_t i = 0; i < len; i++)
        f(ptr[i]);
}

/* sel-melc says const& */
template<typename T>
void timeTwo(T const& x)
{
    x *= 2;
}

int main()
{
    int intArray[] = {1, 2, 3, 4, 10, 20, 30, -1, -2};
    size_t intArraySize = sizeof(intArray) / sizeof(int);
    for (size_t i = 0; i < intArraySize; i++)
        std::cout << intArray[i] << ", ";
    std::cout << std::endl;
    iter(intArray, intArraySize, timeTwo<int>);
    for (size_t i = 0; i < intArraySize; i++)
        std::cout << intArray[i] << ", ";
    std::cout << std::endl;
    std::cout << "--------------------------------------" << std::endl;

    float floatArray[] = {1.1, 2.2, 3.3, 4.3, 10.001, 20.9, 30.3, -1.2, -2.4};
    size_t floatArraySize = sizeof(floatArray) / sizeof(float);
    for (size_t i = 0; i < floatArraySize; i++)
        std::cout << floatArray[i] << ", ";
    std::cout << std::endl;
    iter(floatArray, floatArraySize, timeTwo<float>);
    for (size_t i = 0; i < floatArraySize; i++)
        std::cout << floatArray[i] << ", ";
    std::cout << std::endl;
    std::cout << "--------------------------------------" << std::endl;

    unsigned int uintArray[] = {1, 2, 3, 4, 10, 20, 30, 100, 2000};
    size_t uintArraySize = sizeof(uintArray) / sizeof(unsigned int);
    for (size_t i = 0; i < uintArraySize; i++)
        std::cout << uintArray[i] << ", ";
    std::cout << std::endl;
    iter(uintArray, uintArraySize, timeTwo<unsigned int>);
    for (size_t i = 0; i < uintArraySize; i++)
        std::cout << uintArray[i] << ", ";
    std::cout << std::endl;

    return 0;
}