ΒΆtemplate <typename R, typename UnaryPredicate>
auto count_if(R&& Range, UnaryPredicate P) ->
    typename std::iterator_traits<
        decltype(adl_begin(
            Range))>::difference_type

Description

Wrapper function around std::count_if to count the number of times an element satisfying a given predicate occurs in a range.

Declared at: llvm/include/llvm/ADT/STLExtras.h:1256

Templates

R
UnaryPredicate

Parameters

R&& Range
UnaryPredicate P