标准库头文件 <stack>

 

C++

编译器支持

独立和托管

语言

标准库

标准库头文件

命名需求

特性测试宏 (C++20)

语言支持库

概念库 (C++20)

元编程库 (C++11)

诊断库

通用实用程序库

字符串库

容器库

迭代器库

范围库 (C++20)

算法库

数值库

本地化库

输入/输出库

文件系统库 (C++17)

正则表达式库 (C++11)

并发支持库 (C++11)

执行支持库 (C++26)

技术规范

符号索引

外部库

 

标准库头文件

语言支持
<cstddef> <cstdlib> <version> (C++20) <limits> <climits>	<cfloat> <cstdint> (C++11) <stdfloat> (C++23) <new> <typeinfo>	<source_location> (C++20) <exception> <initializer_list> (C++11) <compare> (C++20)	<coroutine> (C++20) <csignal> <csetjmp> <cstdarg>
概念
<concepts> (C++20)
诊断
<stdexcept> <stacktrace> (C++23)	<cassert>	<cerrno>	<system_error> (C++11)
内存管理
<memory>	<memory_resource> (C++17)	<scoped_allocator> (C++11)
元编程
<type_traits> (C++11)	<ratio> (C++11)
通用实用程序
<utility> <tuple> (C++11) <optional> (C++17) <variant> (C++17)	<any> (C++17) <debugging> (C++26) <expected> (C++23) <bitset>	<functional> <typeindex> (C++11) <execution> (C++17)	<charconv> (C++17) <format> (C++20) <bit> (C++20)
字符串
<string_view> (C++17) <string>	<cctype> <cwctype>	<cstring> <cwchar>	<cuchar> (C++11)
容器
<array> (C++11) <deque> <forward_list> (C++11) <list>	<vector> <map> <set> <unordered_map> (C++11)	<unordered_set> (C++11) <queue> <stack> <flat_map> (C++23)	<flat_set> (C++23) <span> (C++20) <mdspan> (C++23) <inplace_vector> (C++26)
迭代器
<iterator>
范围
<ranges> (C++20)	<generator> (C++23)
算法
<algorithm>	<numeric>
数值
<cfenv> (C++11) <complex>	<random> (C++11) <valarray>	<cmath> <linalg> (C++26)	<numbers> (C++20)
时间
<chrono> (C++11)	<ctime>
本地化
<locale>	<clocale>	<codecvt> (C++11/17/26*)	<text_encoding> (C++26)
输入/输出
<iosfwd> <iostream> <ios> <streambuf>	<istream> <ostream> <iomanip> <print> (C++23)	<sstream> <spanstream> (C++23) <fstream> <syncstream> (C++20)	<filesystem> (C++17) <cstdio> <cinttypes> (C++11) <strstream> (C++98/26*)
正则表达式
<regex> (C++11)
并发支持
<stop_token> (C++20) <thread> (C++11) <atomic> (C++11) <rcu> (C++26)	<stdatomic.h> (C++23) <mutex> (C++11) <shared_mutex> (C++14)	<condition_variable> (C++11)   <semaphore> (C++20) <latch> (C++20)	<barrier> (C++20) <future> (C++11) <hazard_pointer> (C++26)
C 兼容性
<cstdbool> (C++11/17/20*)   <ccomplex> (C++11/17/20*)	<ctgmath> (C++11/17/20*)	<cstdalign> (C++11/17/20*)	<ciso646> (直到 C++20)

 

此头文件是 容器 库的一部分。

包含
<compare> (C++20)	三方比较运算符 支持
<initializer_list> (C++11)	std::initializer_list 类模板
类
stack	使容器适应以提供堆栈（后进先出数据结构） (类模板)
std::uses_allocator<std::stack> (C++11)	专门针对 std::uses_allocator 类型特征 (类模板专门化)
函数
operator==operator!=operator<operator<=operator>operator>=operator<=> (C++20)	按字典顺序比较两个 stack 的值 (函数模板)
std::swap(std::stack) (C++11)	专门化了 std::swap 算法 (函数模板)

概要

#include <compare>
#include <initializer_list>
 
namespace std {
  // class template stack
  template<class T, class Container = deque<T>>
  class stack;
 
  template<class T, class Container>
  bool operator==(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, class Container>
  bool operator!=(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, class Container>
  bool operator<(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, class Container>
  bool operator>(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, class Container>
  bool operator<=(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, class Container>
  bool operator>=(const stack<T, Container>& x, const stack<T, Container>& y);
  template<class T, three_way_comparable Container>
  compare_three_way_result_t<Container> operator<=>(const stack<T, Container>& x,
                                                    const stack<T, Container>& y);
 
  template<class T, class Container>
  void swap(stack<T, Container>& x, stack<T, Container>& y) noexcept(noexcept(x.swap(y)));
  template<class T, class Container, class Alloc>
  struct uses_allocator<stack<T, Container>, Alloc>;
 
  // formatter specialization for stack
  template<class CharT, class T, formattable<CharT> Container>
  struct formatter<stack<T, Container>, CharT>;
}

类模板 std::stack

namespace std {
  template<class T, class Container = deque<T>>
  class stack
  {
  public:
    using value_type      = typename Container::value_type;
    using reference       = typename Container::reference;
    using const_reference = typename Container::const_reference;
    using size_type       = typename Container::size_type;
    using container_type  = Container;
 
  protected:
    Container c;
 
  public:
    stack()
      : stack(Container())
    {
    }
    explicit stack(const Container&);
    explicit stack(Container&&);
    template<class InputIter>
    stack(InputIter first, InputIter last);
    template<container-compatible-range<T> R>
    stack(from_range_t, R&& rg);
    template<class Alloc>
    explicit stack(const Alloc&);
    template<class Alloc>
    stack(const Container&, const Alloc&);
    template<class Alloc>
    stack(Container&&, const Alloc&);
    template<class Alloc>
    stack(const stack&, const Alloc&);
    template<class Alloc>
    stack(stack&&, const Alloc&);
    template<class InputIter, class Alloc>
    stack(InputIter first, InputIter last, const Alloc&);
    template<container-compatible-range<T> R, class Alloc>
    stack(from_range_t, R&& rg, const Alloc&);
 
    bool empty() const { return c.empty(); }
    size_type size() const { return c.size(); }
    reference top() { return c.back(); }
    const_reference top() const { return c.back(); }
    void push(const value_type& x) { c.push_back(x); }
    void push(value_type&& x) { c.push_back(std::move(x)); }
    template<container-compatible-range<T> R>
    void push_range(R&& rg);
    template<class... Args>
    decltype(auto) emplace(Args&&... args)
    {
      return c.emplace_back(std::forward<Args>(args)...);
    }
    void pop() { c.pop_back(); }
    void swap(stack& s) noexcept(is_nothrow_swappable_v<Container>)
    {
      using std::swap;
      swap(c, s.c);
    }
  };
 
  template<class Container>
  stack(Container) -> stack<typename Container::value_type, Container>;
 
  template<class InputIter>
  stack(InputIter, InputIter) -> stack</*iter-value-type*/<InputIter>>;
 
  template<ranges::input_range R>
  stack(from_range_t, R&&) -> stack<ranges::range_value_t<R>>;
 
  template<class Container, class Allocator>
  stack(Container, Allocator) -> stack<typename Container::value_type, Container>;
 
  template<class InputIter, class Allocator>
  stack(InputIter, InputIter, Allocator)
    -> stack</*iter-value-type*/<InputIter>,
             deque</*iter-value-type*/<InputIter>, Allocator>>;
 
  template<ranges::input_range R, class Allocator>
  stack(from_range_t, R&&, Allocator)
    -> stack<ranges::range_value_t<R>, deque<ranges::range_value_t<R>, Allocator>>;
 
  template<class T, class Container, class Alloc>
  struct uses_allocator<stack<T, Container>, Alloc>
    : uses_allocator<Container, Alloc>::type
  {};
}