A simple workaround for the fact that std::equal takes its predicate by value--Raymond Chen

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Simple and efficient.

A simple workaround for the fact that std::equal takes its predicate by value

by Raymond Chen

From the article:

The versions of the std::equal function that takes a binary predicate accepts the predicate by value, which means that if you are using a functor, it will be copied, which may be unnecessary or unwanted.

In my case, the functor had a lot of state, and I didn’t want to copy it....

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