element_at

Returns nth element in a sequence. More...

Functions
template<typename = void>
auto	coveo::linq::element_at (std::size_t n) -> detail::element_at_impl<>
	Returns nth element in sequence. More...

Detailed Description

The element_at operator returns the nth element in the sequence. If the sequence does not have enough elements, an exception is thrown.

This is a terminal operator.

.NET equivalent: ElementAt

Function Documentation

element_at()

template<typename = void>

auto coveo::linq::element_at

(

std::size_t

n

)

-> detail::element_at_impl<>

Returns the nth element in a sequence. If the sequence does not have enough elements, coveo::linq::out_of_range is thrown.

Use like this:

const int NUMS[] = { 42, 23, 66 };

using namespace coveo::linq;
auto second = from(NUMS)
            | element_at(1);
// second == 23
// This throws an exception:
// auto fourth = from(NUMS)
//             | element_at(3);

Parameters

n	0-based index of element to return.

Returns

(Once applied) nth element in sequence.

Exceptions

coveo::linq::out_of_range

The sequence does not have enough elements.