std::filesystem::directory_entry::operator==,!=,<,<=,>,>=,<=>

 

C++

编译器支持

自立实现与有宿主实现

语言

标准库

标准库标头

具名要求

功能特性测试宏 (C++20)

语言支持库

概念库 (C++20)

诊断库

内存管理库

元编程库 (C++11)

通用工具库

容器库

迭代器库

范围库 (C++20)

算法库

字符串库

文本处理库

数值库

日期和时间库

输入/输出库

文件系统库 (C++17)

并发支持库 (C++11)

执行控制库 (C++26)

技术规范

符号索引

外部库

 

文件系统库

类
filesystem::path filesystem::filesystem_error filesystem::directory_entry filesystem::directory_iterator filesystem::recursive_directory_iterator    filesystem::file_status filesystem::space_info	filesystem::file_type filesystem::file_time_type filesystem::perms filesystem::perm_options filesystem::copy_options filesystem::directory_options
函数
filesystem::absolute filesystem::canonicalfilesystem::weakly_canonical filesystem::relativefilesystem::proximate filesystem::copy filesystem::copy_file filesystem::copy_symlink filesystem::create_directory filesystem::create_directories filesystem::create_hard_link filesystem::create_symlink filesystem::create_directory_symlink filesystem::current_path filesystem::temp_directory_path	filesystem::exists filesystem::equivalent filesystem::file_size filesystem::hard_link_count filesystem::last_write_time filesystem::permissions filesystem::read_symlink filesystem::remove filesystem::remove_all filesystem::rename filesystem::resize_file filesystem::space filesystem::status filesystem::symlink_status
文件类型
filesystem::is_block_file filesystem::is_character_file filesystem::is_directory filesystem::is_empty filesystem::status_known	filesystem::is_fifo filesystem::is_other filesystem::is_regular_file filesystem::is_socket filesystem::is_symlink

 

std::filesystem::directory_entry

成员函数

directory_entry::directory_entry

修改器

directory_entry::operator=

directory_entry::assign

directory_entry::replace_filename

directory_entry::refresh

观察器

directory_entry::pathdirectory_entry::operator const path&

directory_entry::exists

directory_entry::is_block_file

directory_entry::is_character_file

directory_entry::is_directory

directory_entry::is_fifo

directory_entry::is_other

directory_entry::is_regular_file

directory_entry::is_socket

directory_entry::is_symlink

directory_entry::file_size

directory_entry::hard_link_count

directory_entry::last_write_time

directory_entry::statusdirectory_entry::symlink_status

directory_entry::operator==directory_entry::operator!=directory_entry::operator<directory_entry::operator>directory_entry::operator<=directory_entry::operator>=directory_entry::operator<=> (C++20 前)(C++20 前)(C++20 前)(C++20 前)(C++20 前)(C++20)

非成员函数

operator<<

 

<tbody> </tbody>

bool operator==( const directory_entry& rhs ) const noexcept;	(1)	(C++17 起)
bool operator!=( const directory_entry& rhs ) const noexcept;	(2)	(C++17 起) (C++20 前)
bool operator<( const directory_entry& rhs ) const noexcept;	(3)	(C++17 起) (C++20 前)
bool operator<=( const directory_entry& rhs ) const noexcept;	(4)	(C++17 起) (C++20 前)
bool operator>( const directory_entry& rhs ) const noexcept;	(5)	(C++17 起) (C++20 前)
bool operator>=( const directory_entry& rhs ) const noexcept;	(6)	(C++17 起) (C++20 前)
std::strong_ordering operator<=>( const directory_entry& rhs ) const noexcept;	(7)	(C++20 起)

See More

与目录条目 rhs 比较路径。

<、<=、>、>= 及 != 运算符分别从 operator<=> 与 operator== 合成。

(C++20 起)

参数

rhs

-

要比较的 directory_entry

返回值

1) 若 path() == rhs.path() 则为 true，否则为 false。

2) 若 path() != rhs.path() 则为 true，否则为 false。

3) 若 path() < rhs.path() 则为 true，否则为 false。

4) 若 path() <= rhs.path() 则为 true，否则为 false。

5) 若 path() > rhs.path() 则为 true，否则为 false。

6) 若 path() >= rhs.path() 则为 true，否则为 false。

7) path() <=> rhs.path() 的结果。

参阅

pathoperator const path&

返回该目录项代表的路径 (公开成员函数)