C++ unique_ptr wrapper for strdup()

[Floyd-ATC]

How to wrap a char* from strdup() in a smart pointer to guarantee it gets freed?

Kode: [Velg]

#include <memory>
typedef std::unique_ptr<char, decltype(&std::free)> char_ptr;

char_ptr make_char_ptr(const std::string str)
{
  return char_ptr(strdup(str.data()), std::free);
}

//...

char_ptr foo = make_char_ptr("bar");
foo.get(); // char* pointer to a copy of "bar"

// pointer automatically gets freed when 'foo' goes out of scope
// or can be freed manually with
foo.reset();


[Beauvais]

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