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Utilities library

Language support

Type support (basic types, RTTI)

Library feature-test macros (C++20)

Program utilities

Variadic functions

initializer_list

(C++11)

is_constant_evaluated

(C++20)

is_within_lifetime

(C++26)

source_location

(C++20)

Coroutine support (C++20)

Contract support (C++26)

Three-way comparison

three_way_comparable three_way_comparable_with

(C++20) (C++20)

strong_ordering

(C++20)

(C++20)

partial_ordering

(C++20)

common_comparison_category

(C++20)

compare_three_way_result

(C++20)

compare_three_way

(C++20)

(C++20)

(C++20)

(C++20)

compare_strong_order_fallback

(C++20)

compare_weak_order_fallback

(C++20)

compare_partial_order_fallback

(C++20)

is_eq is_lt is_lteq

(C++20) (C++20) (C++20)

is_neq is_gt is_gteq

(C++20) (C++20) (C++20)

General utilities

Function objects
Bit manipulation (C++20)
C-style bit manipulation (C++26)
bitset
hash (C++11)

Relational operators (deprecated in C++20)

rel_ops::operator!= rel_ops::operator>

rel_ops::operator<= rel_ops::operator>=

Integer comparison functions

cmp_equal cmp_less cmp_less_than

(C++20) (C++20) (C++20)

cmp_not_equal cmp_greater cmp_greater_than

(C++20) (C++20) (C++20)

(C++20)

Swap and type operations

swap
ranges::swap (C++20)
exchange (C++14)
declval (C++11)
to_underlying (C++23)

forward (C++11)
forward_like (C++23)
move (C++11)
move_if_noexcept (C++11)
as_const (C++17)

Common vocabulary types

pair
tuple (C++11)
optional (C++17)
any (C++17)
variant (C++17)

tuple_size (C++11)
tuple_element (C++11)
apply (C++17)
make_from_tuple (C++17)
expected (C++23)

const T * end ( ) const noexcept ;		(自 C++11 起) (自 C++14 起为 constexpr)

获取指向初始化列表中最后一个元素之后位置的指针，即 begin() + size ( ) 。

如果初始化列表为空， begin() 和 end() 的值是未指定的，但两者将保持一致。

目录

参数

(无)

返回值

指向初始化列表中最后一个元素之后位置的指针

复杂度

常量

示例

运行此代码

#include <initializer_list>
#include <numeric>
int main()
{
    static constexpr auto l = {3, 13, 13};
    static_assert(std::accumulate(l.begin(), l.end(), 13) == 42);
}

参见

返回指向首元素的指针
(公开成员函数)