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C++20 STL Cookbook

Combine Predicates with Logical Conjunction

Discover how to create custom conjunctions by combining multiple lambda predicates into one using a function that returns a lambda. This lesson helps you effectively use logical conjunctions with STL algorithms such as copy_if, enabling more advanced and flexible filtering of collections.

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This example wraps a lambda in a function to create a custom conjunctionA custom conjunction is a grammatical conjunction created by combining two or more existing conjunctions to express a specific relationship between clauses or phrases in a sentence. for use with an algorithm predicate.

How to do it

The copy_if() algorithm requires a predicate that takes one ...