creating a fstream object from memory buffer

Question

Suppose I have some memory allocated by malloc. Now i want to use it as stream buffer as fstream object. In another situation suppose i've a FILE*. Is it possible to create a fstream object from it?

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Actually I've an existing library which accepts FILE* arguments in it's function.Now I want to implement the library with cpp type file handling, maintaining backward compatability . What should I do?

Answer 1

You can not make a fstream object from a FILE* .

You should personally write a stream based on C++ standard I/O streams which works by a FILE*