#include <iostream>
#include "Array.hpp"

// Function declarations
int main();
Array<double> ones( std::size_t const n );

// Function definitions
int main() {
    Array<double> data_1{5};
    std::cout << data_1 << std::endl << std::endl;

    Array<double> data_2{ data_1 };
    std::cout << data_2 << std::endl << std::endl;

    Array<double> data_3{ ones( 5 ) };
    std::cout << data_3 << std::endl << std::endl;

    data_1 = data_3;
    std::cout << data_1 << std::endl << std::endl;

    data_1 = ones( 5 );
    std::cout << data_1 << std::endl << std::endl;

    return 0;
}

Array<double> ones( std::size_t const n ) {
    std::cout << "ones( " << n << " ) called..." << std::endl;

    if ( n == 0 ) {
        return Array<double>{ 0 };
    } else {
        Array<double> one_array{ n };

        for ( std::size_t k{0}; k < n - 1; ++k ) {
            one_array[k] = 1.0;
        }

        return one_array;
    }
}

/******************************************************************** 
 ******************************************************************** 

// Note that the GNU C++ compiler is very intelligent
//   If
//          Array data_3{ ones( 5 ) };
//   is called with this function, it simply initializes
//   data_3 and does alway with the temporary local variable
//   of 'one_array', so no move constructor is required!

Array<double> ones( std::size_t const n ) {
    std::cout << "ones( " << n << " ) called..." << std::endl;
    Array<double> one_array{ n };

    for ( std::size_t k{0}; k < n - 1; ++k ) {
        one_array[k] = 1.0;
    }

    return one_array;
}
 ********************************************************************
 ********************************************************************/