[INFO] Software Patents: An Example of the Threat

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1 total messages Started by Paul Eggert Wed, 06 Jan 1993 01:04

#123

Author: Paul Eggert
Date: Wed, 06 Jan 1993 01:04

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comp.patents readers might find the following article of interest.

	Paul W Abrahams
	Software Patents: An Example of the Threat
	ACM SIGPLAN Notices 27, 8 (August 1992), 87-88

It briefly discusses US patent #4,992,971, issued 12 February 1991 to
K. Hayashi of Tokyo and assigned to NEC.  This patent covers the
obvious technique for verifying at link time that a call to a
separately compiled procedure matches the procedure's definition.
(The method is to check that the number of arguments matches,
and then to check that the attributes of each invocation argument
matches the attributes of the corresponding procedure parameter.)

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