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Midlertidig udskrift til stderr

Jeg har brug for at lave redirection af stderr til en fil,
som jeg har åbnet. Det virker sådan fint nok:

  string sErr = "TestCscanInput.err";
  ofstream oError(sErr.c_str());
  cerr = oError;
  ...
  oError.close();

Mit problem er at få stderr tilbage igen!

Hvordan kan jeg lave en midlertidig redirection af stderr?

mvh
Jan Eggert Kofoed


 
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