Re: char* to std::string

pepone wrote (comments adjusted):

  > can any body sayme how this code works in c++
  >
  >
  > std::string
  > MyClass::doSameThing()
  > {
  > char* data = getSameData(); /*this return same data reserved
  > with malloc*/
  > std::string retval = data; //Whats happen here i get a new
  > // copy of data?

Yes, std::string manages its own storage. It copies the C-style string
you pass to its constructor and does not just hijack the pointer.

  > delete(data); // is correct free data now?

It's safe to free it now, but it's wrong to use delete when the memory
was allocated via malloc. Always pair new/delete and malloc/free.

  > return retval;
  > }

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Gerhard Menzl

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