Algorithm: count_if

Reduces the range along with the initial value init over op. More...

Functions
template<detail::simd_execution_policy ExecutionPolicy, detail::simd_execution_iterator It, typename F>
constexpr int	vir::count_if (ExecutionPolicy pol, It first, It last, F &&pred)
	Count the elements in the input range matching pred (iterator overload)
template<detail::simd_execution_policy ExecutionPolicy, detail::simd_execution_range R, typename F>
constexpr int	vir::count_if (ExecutionPolicy pol, R &&rg, F &&pred)
	Count the elements in the input range matching pred (range overload)
template<vir::detail::simd_execution_policy ExecutionPolicy, vir::detail::simd_execution_iterator It, typename F>
constexpr int	std::count_if (ExecutionPolicy pol, It first, It last, F &&fun)
	Overloads std::count_if for vir::execution::simd.

Detailed Description

Reduces the range along with the initial value init over op.

Parameters

pol	Needs to be vir::execution::simd or one of the derived types returned from its modifiers. (vir::detail::simd_execution_policy)
first,last	Iterator pair modelling vir::detail::simd_execution_iterator.
rg	Input ranges modelling vir::detail::simd_execution_range.
pred	Callable that is invoked with multiple input elements in a simd object, returning a simd_mask indicating the elements to be counted.

Returns

The number of true values in all simd_mask objects returned from invocations of pred.