The following code example is taken from the book
The C++ Standard Library - A Tutorial and Reference, 2nd Edition
by Nicolai M. Josuttis, Addison Wesley Longman, 2012
Copyright © 2012 by Pearson Education, Inc. and Nicolai M. Josuttis
#include <string>
#include <fstream> // for ofstream
#include <memory> // for shared_ptr
#include <cstdio> // for remove()
class FileDeleter
{
private:
std::string filename;
public:
FileDeleter (const std::string& fn)
: filename(fn) {
}
void operator () (std::ofstream* fp) {
delete fp; // close file
std::remove(filename.c_str()); // delete file
}
};
int main()
{
// create and open temporary file:
std::shared_ptr<std::ofstream> fp(new std::ofstream("tmpfile.txt"),
FileDeleter("tmpfile.txt"));
//...
}