Thread View: gnu.g++
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Started by T.Day
Thu, 07 Dec 1989 11:52
Re: bastard programs
Author: T.Day
Date: Thu, 07 Dec 1989 11:52
Date: Thu, 07 Dec 1989 11:52
23 lines
1543 bytes
1543 bytes
From: Tim Day <T.Day@uk.ac.ucl.cs> Something to watch out for: It's quite possible to write e.g stdout << "foobar" and similar things by accident. The type conversion attempts to convert stdout to an ostream (possible using the ostream constructors); there is be no warning message, but the program usually bombs in all sorts of strange places if you write stdout << "a" << "b" as the newly constructed ostream goes out of scope before the second operator<< is called; (except that it hangs around on the stack long enough to look like it had worked and/or screws up the stack to mislead the debugger). I suspect mixing cerr and stderr is asking for trouble. Either use one or the other, or perhaps derive your own ostream class and replace all the operator<< routines with stuff to access FILE*s (or cerr specifically) safely using fprintf. +-----------------------------------------------------------------------------+ Tim Day | Meet every second in life as challenge; Department of Photogrammetry | Respond fully to whatever happens UCL, Gower St., London WC1E 6BT | without anxiety, or complaint, or clinging +-----------------------------------------------------------------------------+
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