std::filesystem::recursive_directory_iterator::pop

 

C++

语言

标准库头文件

自立与有宿主实现

具名要求

语言支持库

概念库 (C++20)

诊断库

工具库

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)

原子操作库 (C++11)

线程支持库 (C++11)

技术规范

 

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::perms filesystem::perm_options filesystem::copy_options filesystem::directory_options filesystem::file_time_type
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::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 filesystem::temp_directory_path
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::recursive_directory_iterator

成员函数

recursive_directory_iterator::recursive_directory_iterator

recursive_directory_iterator::operator*recursive_directory_iterator::operator->

recursive_directory_iterator::options

recursive_directory_iterator::depth

recursive_directory_iterator::recursion_pending

recursive_directory_iterator::operator=

recursive_directory_iterator::incrementrecursive_directory_iterator::operator++

recursive_directory_iterator::pop

recursive_directory_iterator::disable_recursion_pending

非成员函数

begin(std::filesystem::recursive_directory_iterator)end(std::filesystem::recursive_directory_iterator)

 

void pop();	(1)	(C++17 起)
void pop(std::error_code& ec);	(2)	(C++17 起)

在目录层级中上移一层迭代器。非法化所有 *this 的先前值的副本。

若亲目录在迭代的目录层级之外（即 depth() == 0 ），则设 *this 为尾目录迭代器。

参数

ec

-

要设置错误状态到的错误码

返回值

（无）

异常

不接受 std::error_code& 参数的重载在底层 OS API 错误时抛出 filesystem_error ，以作为错误码参数的 OS 错误码构造。若 OS API 调用失败，则接受 std::error_code& 参数的重载设置该参数为 OS API 错误码，而若不出现错误则执行 ec.clear() 。若内存分配失败，则任何不标记为 noexcept 的重载可能抛出 std::bad_alloc 。