18 lines
979 B
Plaintext
18 lines
979 B
Plaintext
ill-behaved
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adj. 1. [numerical analysis] Said of an algorithm or computational method
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that tends to blow up because of accumulated roundoff error or poor
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convergence properties. 2. [obs.] Software that bypasses the defined OS
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interfaces to do things (like screen, keyboard, and disk I/O) itself, often
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in a way that depends on the hardware of the machine it is running on or
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which is nonportable or incompatible with other pieces of software. In the
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MS-DOS world, there was a folk theorem (nearly true) to the effect that
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(owing to gross inadequacies and performance penalties in the OS interface)
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all interesting applications were ill-behaved. See also bare metal. Oppose
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well-behaved. See also mess-dos. 3. In modern usage, a program is called
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ill-behaved if it uses interfaces to the OS or other programs that are
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private, undocumented, or grossly non-portable. Another way to be
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ill-behaved is to use headers or files that are theoretically private to
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another application.
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