C++ Print Vector Without Loop

If you want to print the contents of a vector in C++ without using a loop, you can use the std::copy algorithm together with the std::ostream_iterator.

Here's an example code snippet:

#include <iostream>
#include <vector>
#include <algorithm>
#include <iterator>

int main() {
    std::vector<int> vec{1, 2, 3, 4, 5};

    // Print the vector to stdout
    std::copy(vec.begin(), vec.end(), std::ostream_iterator<int>(std::cout, " "));

    return 0;
}

In this code, we create a vector vec with some integer values. The std::copy algorithm takes the iterators (pointing to the beginning and end of the vector), and streams each integer value to the std::cout object using the std::ostream_iterator with a delimiter of a space character.

The output of this program will be:

1 2 3 4 5 

Using std::copy and std::ostream_iterator allows us to write concise and expressive code without resorting to loops.