seanh@r4.cs.man.ac.uk (Sean Holdsworth) (09/13/90)
First apologies if this is a question that's come up before; I'm relatively new to C++ and have not been following comp.lang.c++ for long... I'm writing an application which involves implementing distributed virtual memory. I have a class called Region which holds information such as the address of the start of an area of memory, its size, protection attributes etc. Creation of an object of class Region (which can be either on the stack or on the heap) involves making several system calls each of which can fail in a number of ways. It would be nice to be able to wrap up these system calls in the class constructor but I can't figure a sensible way of returning back to the caller information on possible failures. My current scheme involves having a class static variable to provide this information which must be referred to via a member function after each call to the constructor in order to check whether the call succeeded. This solution does not seem very elegant. Does anyone have any better solutions to this type of problem which I suspect must arise quite often? ----------------------------------------------------------------------------- Sean Holdsworth. EDS Group, Room 407 IT Building, Department of Computer Science, University of Manchester, Oxford Road, Manchester, M13 9PL, UK. Janet: seanh@uk.ac.man.cs Tel: +44-61-275-6294 UUCP: ...!uunet!mcsun!ukc!man.cs!seanh Fax: +44-61-275-6280 Inet: seanh%cs.man.ac.uk@nsfnet-relay.ac.uk Int: 6294 -----------------------------------------------------------------------------