lst-0032-godb.cpp
//#(compile) c++; compiler:g141; options:-O3 -std=c++23; libs:-
// https://godbolt.org/z/Gfrd5cceG
#include <string>
#include <string_view>
using std::string; using sview = std::string_view;
struct Person {
string name_;
int age_;
string city_;
Person(sview n = "N.N.", int a = 18, sview c = "Berlin")
: name_(n), age_(a), city_(c) { }
};