Does "new char[]" need to be release resources manually?

Question

For this: m_sFilename = new char [len+1];

Should I call delete[] m_sFilename; sometime?

And:

should I use delete[] m_sFilename or delete m_sFilename;?

Answer 1

Does "new char[]" need to be release resouces manually?

Yes.

For this: m_sFilename = new char [len+1]; Should I call delete[] m_sFilename; sometime?

Yes.

Should I use delete[] m_sFilename or delete m_sFilename;?

delete[].

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But you should actually use std::string, which does all this for you, and is free.