7 lines
340 B
Text
7 lines
340 B
Text
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Sentinel provides a single lvalue function, sentinel, which yields a scalar that
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invoke callbacks to get or set its value. Primarily this is useful to create
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lvalue object accessors or other functions, to invoke actual code when a new
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value is set, rather than simply updating a scalar variable.
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WWW: http://search.cpan.org/dist/Sentinel/
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