std::chrono:: operator<< (std::chrono::local_info)

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Non-member functions
operator<<
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formatter <std::chrono::local_info>

定义于头文件 `<chrono>`
template < class CharT, class Traits > std:: basic_ostream < CharT, Traits > & operator << ( std:: basic_ostream < CharT, Traits > & os, const std:: chrono :: local_info & r ) ;		(C++20 起)

将 r 的文本表示插入到 os 中。具体格式未作规定。

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