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Experimental library header <experimental/ranges/functional>

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Experimental library headers
Execution P2300
<experimental/execution>
Filesystem TS
<experimental/filesystem>
Parallelism TS (v1, v2)
experimental/algorithm
experimental/execution_policy
experimental/exception_list
experimental/numeric
<experimental/simd>
experimental/task_block
Library Fundamentals TS (v1, v2, v3)
experimental/algorithm
<experimental/any>
experimental/array
experimental/chrono
experimental/deque
experimental/forward_list
<experimental/functional>
experimental/future
experimental/iterator
experimental/list
experimental/map
experimental/memory
<experimental/memory_resource>
experimental/numeric
<experimental/optional>
experimental/propagate_const
experimental/random
experimental/ratio
experimental/regex
experimental/scope
experimental/set
experimental/source_location
experimental/string
<experimental/string_view>
experimental/system_error
experimental/tuple
experimental/type_traits
experimental/unordered_map
experimental/unordered_set
experimental/utility
experimental/vector

Concurrency TS
experimental/atomic
experimental/barrier
experimental/future
experimental/latch
Ranges TS
Coroutines TS
experimental/coroutine
Networking TS
experimental/buffer
experimental/executor
experimental/internet
experimental/io_context
<experimental/net>
experimental/netfwd
experimental/socket
experimental/timer
Reflection TS
<experimental/reflect>

此头文件属于 ranges 库。

函数对象

定义于 命名空间 std::experimental::ranges
以给定参数调用 Callable 对象
(函数模板)
实现 x == y 的函数对象
(类模板)
实现 x ! = y 的函数对象
(类模板)
实现 x > y 的函数对象
(类模板)
实现 x < y 的函数对象
(类模板)
实现 x >= y 的函数对象
(类模板)
实现 x <= y 的函数对象
(类模板)
返回未更改参数值的函数对象
(类)

概要 

namespace std { namespace experimental { namespace ranges { inline namespace v1 {
template <class F, class... Args>
std::result_of_t<F&&(Args&&...)> invoke(F&& f, Args&&... args);
template <class T = void>
  requires /* 查看定义 */
struct equal_to;
template <class T = void>
  requires /* 查看定义 */
struct not_equal_to;
template <class T = void>
  requires /* 查看定义 */
struct greater;
template <class T = void>
  requires /* 查看定义 */
struct less;
template <class T = void>
  requires /* 查看定义 */
struct greater_equal;
template <class T = void>
  requires /* 查看定义 */
struct less_equal;
template <> struct equal_to<void>;
template <> struct not_equal_to<void>;
template <> struct greater<void>;
template <> struct less<void>;
template <> struct greater_equal<void>;
template <> struct less_equal<void>;
struct identity;
}}}}