Example program used to examine string layouts for this article: https://eu90h.github.io/cpp-strings.html

string.cpp

// Compile with -O3
#include <string>
#include <stdlib.h>
#include <iostream>
using namespace std;
int main(int argc, char *argv[]) {
  string greeting("Hello, ");
  string name = argv[1];
  cout << greeting.append(name) << endl;
  return 0;
}