lst-0006-godb.cpp
//#(execute) c++; compiler:g132; options:-O3 -std=c++23; libs:-
// https://godbolt.org/z/9eeG575Wz
struct Buffer {
const char *data;
explicit Buffer(unsigned sz): data(new char[sz]) {}
~Buffer() { delete[] data; }
Buffer(const Buffer&) = delete;
Buffer& operator=(const Buffer&) = delete;
};