xtd::ranges::views::select_view Class Reference

Definition

The xtd::ranges::views::select_view class is used to select elements from a sequence.

Definition

class select_view;

Header

#include <xtd/ranges/views/select_view>

Namespace

xtd::ranges::views

Library

xtd.core

Examples

The following example shows how to use xtd::ranges::views::select instance :

#include <xtd/xtd>
 
auto main() -> int {
  auto numbers = array {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
  console::write_line("numbers = {}", numbers | select([](auto n) {return n * n;}));
}
 
// This code produces the following output :
//
// numbers = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]

The following example shows how to use xtd::ranges::views::select_view class :

#include <xtd/xtd>
 
auto main() -> int {
  auto numbers = array {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
  console::write_line("numbers = {}", select(numbers, [](auto n) {return n * n;}));
}
 
// This code produces the following output :
//
// numbers = [1, 4, 9, 16, 25, 36, 49, 64, 81, 100]

Public Operators
template<std::ranges::range range_t, typename selector_t>
auto	operator() (range_t &&source, const selector_t &selector) const
	Projects each element of a sequence into a new form.
template<typename selector_t>
auto	operator() (const selector_t &selector) const
	Projects each element of a sequence into a new form.

Member Function Documentation

operator()() [1/2]

template<std::ranges::range range_t, typename selector_t>

auto xtd::ranges::views::select_view::operator() ( range_t && source, const selector_t & selector ) const

inline

Projects each element of a sequence into a new form.

Parameters

source	A sequence of values to invoke a transform function on.
selector	A transform function to apply to each element.

Returns

An iterable select elements from the source sequence.

operator()() [2/2]

template<typename selector_t>

auto xtd::ranges::views::select_view::operator() ( const selector_t & selector ) const

inline

Projects each element of a sequence into a new form.

Parameters

selector

A transform function to apply to each element.

Returns

An iterable select elements from the source sequence.

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The documentation for this class was generated from the following file:

• xtd.core/include/xtd/ranges/views/select_view.hpp