std::cout << "String " << s5 << " converts into number " << x << "\n";
assert(x == 0.0);
+ // Convert a String to a std::string
+
+ String s10("This is a String");
+ std::string x10;
+
+ x10 = s10.std_string();
+ std::cout << "String " << s10 << " converts into std::string " << x10 << "\n";
+
+ assert(String(x10) == s10);
+
return 0;
}