Concept Predicateauto concept Predicate<typename F, typename T1> : Callable1 {
requires Convertiblebool>;
}; Where Defined#include <concepts> DescriptionThe Predicate concept requires that a function object be
callable with a single argument, the result of which can be used in a
context that requires a bool. Predicate function objects shall not apply any non-constant function
through the predicate arguments.
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