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UInt_t BufferIO::SetEffectiveSize ( UInt_t  size = kMaxUInt_t)
inherited

in case the buffer is partly filled and you would like to read it again

If the given size is higher than the current size, it does not affect the size of the buffer. Otherwise, the size of the buffer is set to the given value.

It returns the size of the buffer after application of this method.

To come back with a situation with Real and Effective size equal, just call SetEffectiveSize();

Definition at line 152 of file BufferIO.cpp.