615 B
615 B
[indirectcallable.general]
24 Iterators library [iterators]
24.3 Iterator requirements [iterator.requirements]
24.3.6 Indirect callable requirements [indirectcallable]
24.3.6.1 General [indirectcallable.general]
There are several concepts that group requirements of algorithms that take callable objects ([func.def]) as arguments.