RosettaCodeData/Task/String-case/C++/string-case-2.cpp

#include <iostream>
#include <string>

using namespace std;
int main() {
  string foo("_upperCas3Me!!");
  str_toupper(foo);
  cout << foo << endl;
  str_tolower(foo);
  cout << foo << endl;
  return 0;
}