August 2012
Intermediate to advanced
976 pages
30h 17m
English
Content preview from C++ Primer, Fifth Edition
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10.3.1. Passing a Function to an Algorithm
As one example, assume that we want to print the vector after we call elimDups (§ 10.2.3, p. 384). However, we’ll also assume that we want to see the words ordered by their size, and then alphabetically within each size. To reorder the vector by length, we’ll use a second, overloaded version of sort. This version of sort takes a third argument that is a predicate.
Predicates
A predicate is an expression that can be called and that returns a value that can be used as a condition. The predicates used by library algorithms are either unary predicates (meaning they have a single parameter) or binary predicates ...
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