timestamp类 参考

时间戳类 更多...

#include <datetime.hpp>

类 timestamp 继承关系图:

Public 类型
using	value_type = int64_t
	值类型
Public 类型 继承自 ipackage< timestamp, int64_t >
using	package_type
	包装类型

Public 成员函数
constexpr	timestamp (const value_type value) noexcept
	从秒数构造
constexpr	timestamp (const datetime &dt) noexcept
	从日期时间构造
constexpr datetime	to_datetime () const noexcept
	转换为日期时间
constexpr string	to_string () const
	转换为字符串
constexpr void	clear () noexcept
	重置为0
Public 成员函数 继承自 iobject< timestamp >
constexpr bool	try_parse (const string_view str) noexcept
	尝试从字符串解析对象
Public 成员函数 继承自 istringify< timestamp >
constexpr string	to_string () const
	转换为字符串
Public 成员函数 继承自 ipackage< timestamp, int64_t >
constexpr	operator package_type () const noexcept
	类型转换操作符
constexpr package_type	value () const noexcept
	获取数值
constexpr int64_t	to_int64 () const noexcept
	转换为64位整数
constexpr size_t	to_hash () const noexcept
	计算哈希值
constexpr void	swap (timestamp &other) noexcept
	交换内容
constexpr bool	equal_to (const timestamp &other) const noexcept
	相等比较操作符
constexpr bool	less_than (const timestamp &other) const noexcept
	小于比较操作符
constexpr timestamp &	operator+= (const timestamp &other) noexcept
	加法赋值操作符
constexpr timestamp &	operator-= (const timestamp &other) noexcept
	减法赋值操作符
constexpr timestamp &	operator*= (const timestamp &other) noexcept
	乘法赋值操作符
constexpr timestamp &	operator/= (const timestamp &other)
	除法赋值操作符
constexpr timestamp &	operator%= (const timestamp &other)
	取模赋值操作符
constexpr timestamp	operator- () const noexcept
	一元负号操作符
constexpr timestamp &	operator++ () noexcept
	前置递增操作符
constexpr timestamp &	operator-- () noexcept
	前置递减操作符
constexpr timestamp	operator~ () const noexcept
	按位取反操作符
constexpr timestamp &	operator&= (const timestamp &other) noexcept
	按位与赋值操作符
constexpr timestamp &	operator|= (const timestamp &other) noexcept
	按位或赋值操作符
constexpr timestamp &	operator^= (const timestamp &other) noexcept
	按位异或赋值操作符
constexpr timestamp &	operator<<= (const uint32_t shift)
	左移赋值操作符
constexpr timestamp &	operator>>= (const uint32_t shift)
	右移赋值操作符
Public 成员函数 继承自 icomparable< timestamp >
constexpr bool	operator== (const timestamp &rhs) const noexcept(noexcept(derived().equal_to(rhs)))
	相等比较运算符
constexpr bool	operator!= (const timestamp &rhs) const noexcept(noexcept(!(derived().equal_to(rhs))))
	不等比较运算符
constexpr bool	operator< (const timestamp &rhs) const noexcept(noexcept(derived().less_than(rhs)))
	小于比较运算符
constexpr bool	operator> (const timestamp &rhs) const noexcept(noexcept(rhs.less_than(derived())))
	大于比较运算符
constexpr bool	operator<= (const timestamp &rhs) const noexcept(noexcept(!(rhs.less_than(derived()))))
	小于等于比较运算符
constexpr bool	operator>= (const timestamp &rhs) const noexcept(noexcept(!(derived().less_than(rhs))))
	大于等于比较运算符
Public 成员函数 继承自 ihashable< timestamp >
constexpr size_t	to_ihash () const noexcept(noexcept(derived().to_hash()))
	获取对象的哈希值
Public 成员函数 继承自 iarithmetic< timestamp >
constexpr timestamp	operator+ (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator+=(other)))
	加法运算符
constexpr timestamp	operator- (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator-=(other)))
	减法运算符
constexpr timestamp	operator* (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator*=(other)))
	乘法运算符
constexpr timestamp	operator/ (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator/=(other)))
	除法运算符
constexpr timestamp	operator% (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator%=(other)))
	取模运算符
constexpr timestamp &	operator+= (const timestamp &other) noexcept(noexcept(derived().operator+=(other)))
	加法赋值运算符
constexpr timestamp &	operator-= (const timestamp &other) noexcept(noexcept(derived().operator-=(other)))
	减法赋值运算符
constexpr timestamp &	operator*= (const timestamp &other) noexcept(noexcept(derived().operator*=(other)))
	乘法赋值运算符
constexpr timestamp &	operator/= (const timestamp &other)
	除法赋值运算符
constexpr timestamp &	operator%= (const timestamp &other)
	取模赋值运算符
constexpr timestamp &	operator++ () noexcept(noexcept(derived().operator++()))
	前置自增运算符
constexpr timestamp &	operator-- () noexcept(noexcept(derived().operator--()))
	前置自减运算符
Public 成员函数 继承自 ibinary< timestamp >
constexpr timestamp	operator& (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator&=(other)))
	按位与运算符
constexpr timestamp	operator| (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator|=(other)))
	按位或运算符
constexpr timestamp	operator^ (const timestamp &other) const noexcept(noexcept(const_cast< timestamp & >(derived()).operator^=(other)))
	按位异或运算符
constexpr timestamp	operator~ () const noexcept(noexcept(derived().operator~()))
	按位取反运算符
constexpr timestamp	operator<< (const uint32_t shift) const
	左移运算符
constexpr timestamp	operator>> (const uint32_t shift) const
	右移运算符
constexpr timestamp &	operator&= (const timestamp &other) noexcept(noexcept(derived().operator&=(other)))
	按位与赋值运算符
constexpr timestamp &	operator|= (const timestamp &other) noexcept(noexcept(derived().operator|=(other)))
	按位或赋值运算符
constexpr timestamp &	operator^= (const timestamp &other) noexcept(noexcept(derived().operator^=(other)))
	按位异或赋值运算符
constexpr timestamp &	operator<<= (const uint32_t shift)
	左移赋值运算符
constexpr timestamp &	operator>>= (const uint32_t shift)
	右移赋值运算符

静态 Public 成员函数
static timestamp	now () noexcept
	获取当前时间戳
static constexpr timestamp	parse (const string_view view)
	从字符串解析
静态 Public 成员函数 继承自 iobject< timestamp >
static constexpr timestamp	parse (const string_view str)
	从字符串解析对象
静态 Public 成员函数 继承自 ipackage< timestamp, int64_t >
static constexpr size_t	bytes () noexcept
	获取类型字节大小
static constexpr size_t	bits () noexcept
	获取类型位大小

额外继承的成员函数
Protected 成员函数 继承自 ipackage< timestamp, int64_t >
constexpr	~ipackage ()=default
	受保护的析构函数
Protected 属性 继承自 ipackage< timestamp, int64_t >
package_type	value_
	存储的数值

详细描述

时间戳类

表示从1970-01-01 00:00:00 UTC开始的秒数。 包装了int64_t，提供与datetime的相互转换。

在文件 datetime.hpp 第 1463 行定义.

构造及析构函数说明

timestamp() [1/2]

timestamp::timestamp ( const value_type value )

inlineexplicitconstexprnoexcept

从秒数构造

参数

value

秒数

在文件 datetime.hpp 第 1494 行定义.

引用了 ipackage< timestamp, int64_t >::value().

timestamp() [2/2]

timestamp::timestamp ( const datetime & dt )

inlineexplicitconstexprnoexcept

从日期时间构造

参数

dt

日期时间

在文件 datetime.hpp 第 1501 行定义.

引用了 datetime::epoch(), datetime::to_UTC() , 以及 ipackage< timestamp, int64_t >::value_.

成员函数说明

now()

timestamp timestamp::now ( )

inlinestaticnodiscardnoexcept

获取当前时间戳

返回

当前时间戳

在文件 datetime.hpp 第 1510 行定义.

引用了 datetime::now().

被这些函数引用 get_current_task_group().

parse()

constexpr timestamp timestamp::parse ( const string_view view )

inlinestaticnodiscardconstexpr

从字符串解析

参数

view

数字字符串

返回

解析得到的时间戳

在文件 datetime.hpp 第 1529 行定义.

to_datetime()

datetime timestamp::to_datetime ( ) const

inlinenodiscardconstexprnoexcept

转换为日期时间

返回

对应的日期时间

在文件 datetime.hpp 第 1516 行定义.

引用了 datetime::epoch() , 以及 ipackage< timestamp, int64_t >::value_.

to_string()

string timestamp::to_string ( ) const

inlinenodiscardconstexpr

转换为字符串

返回

数字字符串

在文件 datetime.hpp 第 1522 行定义.

引用了 ipackage< timestamp, int64_t >::value_.

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该类的文档由以下文件生成:

• datetime.hpp