如何在c ++的代码中将printf语句限制为每行80个字符？

#include<iostream>
#include <iomanip>

int main() {
    std::string text = "Hello, World! This is a long text that needs to be limited to 80 characters per line.";
    int max_chars_per_line = 80;

    for (int i = 0; i< text.length(); i += max_chars_per_line) {
        std::cout<< std::left<< std::setw(max_chars_per_line)<< text.substr(i, max_chars_per_line)<< std::endl;
    }

    return 0;
}