std::chrono::floor(std::chrono::duration)
Defined in header <chrono> | ? | ? |
|---|---|---|
template <class ToDuration, class Rep, class Period> constexpr ToDuration floor(const duration<Rep, Period>& d); | ? | (since C++17) |
返回最大持续时间t可在ToDuration小于或等于d...
该函数不参与重载解析，除非ToDuration是std::chrono::duration...
参数
d | - | duration to convert |
|---|
返回值
d四舍五入为类型的持续时间ToDuration...
可能的实施
模板<class T>结构是[医]持续时间：STD：：false[医]类型{}；模板<类Rep，类周期>结构是[医]持续时间<std：：time：：time<rep，time>>：std：：true[医]类型{}；模板<class到类，类Rep，类周期，class=std：：Enable[医]如果[医]T<IS[医]持续时间<To>{}>到楼层的百分比28持续时间<Rep，期间>&d%29{to t=std：：chrono：：工期[医]铸造<To>%28d%29；如果%28t>d%29返回t-到{1}；返回t；}
*。
例
另见
duration_cast | converts a duration to another, with a different tick interval (function template) |
|---|---|
ceil(std::chrono::duration) (C++17) | converts a duration to another, rounding up (function template) |
round(std::chrono::duration) (C++17) | converts a duration to another, rounding to nearest, ties to even (function template) |
floor(std::chrono::time_point) (C++17) | converts a time_point to another, rounding down (function template) |
floor | nearest integer not greater than the given value (function) |
? cppreference.com在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。
本文档系腾讯云开发者社区成员共同维护，如有问题请联系 cloudcommunity@tencent.com
