在线文档教程
首页 技术教程 开发文档 觅分类 ICON图标
技术教程 开发文档 觅分类 ICON图标
Bootstrap 4
Bootstrap 3
C
C++
算法 | Algorithm
原子性操作 | Atomic operations
概念 | Concepts
容器 | Containers
动态内存管理 | Dynamic memory management
文件系统 | Filesystem
Filesystem library
is_relative
operators (std::filesystem::path)
operators (std::filesystem::path)
std::filesystem::absolute
std::filesystem::begin(directory_iterator)
std::filesystem::begin(recursive_directory_iterator)
std::filesystem::canonical
std::filesystem::copy
std::filesystem::copy_file
std::filesystem::copy_options
std::filesystem::copy_symlink
std::filesystem::create_directories
std::filesystem::create_directory
std::filesystem::create_directory_symlink
std::filesystem::create_hard_link
std::filesystem::create_symlink
std::filesystem::current_path
std::filesystem::directory_entry
std::filesystem::directory_entry::assign
std::filesystem::directory_entry::directory_entry
std::filesystem::directory_entry::operators
std::filesystem::directory_entry::path
std::filesystem::directory_entry::replace_filename
std::filesystem::directory_entry::status
std::filesystem::directory_entry::symlink_status
std::filesystem::directory_iterator
std::filesystem::directory_iterator::directory_iterator
std::filesystem::directory_iterator::operator->
std::filesystem::directory_iterator::operator=
std::filesystem::directory_iterator::operators
std::filesystem::directory_options
std::filesystem::end
std::filesystem::end
std::filesystem::equivalent
std::filesystem::exists
std::filesystem::filesystem_error
std::filesystem::filesystem_error::filesystem_error
std::filesystem::filesystem_error::path1
std::filesystem::filesystem_error::path2
std::filesystem::filesystem_error::what
std::filesystem::file_size
std::filesystem::file_status
std::filesystem::file_status::file_status
std::filesystem::file_status::permissions
std::filesystem::file_status::type
std::filesystem::file_time_type
std::filesystem::file_type
std::filesystem::hard_link_count
std::filesystem::hash_value
std::filesystem::is_block_file
std::filesystem::is_character_file
std::filesystem::is_directory
std::filesystem::is_empty
std::filesystem::is_fifo
std::filesystem::is_other
std::filesystem::is_regular_file
std::filesystem::is_socket
std::filesystem::is_symlink
std::filesystem::last_write_time
std::filesystem::operator/(std::filesystem::path)
std::filesystem::path
std::filesystem::path::append
std::filesystem::path::assign
std::filesystem::path::begin
std::filesystem::path::clear
std::filesystem::path::compare
std::filesystem::path::concat
std::filesystem::path::c_str
std::filesystem::path::empty
std::filesystem::path::end
std::filesystem::path::extension
std::filesystem::path::filename
std::filesystem::path::generic_string
std::filesystem::path::generic_u8string
std::filesystem::path::generic_wstring
std::filesystem::path::has_root_directory
std::filesystem::path::has_root_name
std::filesystem::path::has_root_path
std::filesystem::path::is_absolute
std::filesystem::path::lexically_normal
std::filesystem::path::lexically_proximate
std::filesystem::path::lexically_relative
std::filesystem::path::make_preferred
std::filesystem::path::native
std::filesystem::path::operator string_type()
std::filesystem::path::operator+=
std::filesystem::path::operator/=
std::filesystem::path::parent_path
std::filesystem::path::path
std::filesystem::path::relative_path
std::filesystem::path::remove_filename
std::filesystem::path::replace_extension
std::filesystem::path::replace_filename
std::filesystem::path::root_directory
std::filesystem::path::root_name
std::filesystem::path::root_path
std::filesystem::path::stem
std::filesystem::path::string
std::filesystem::path::swap
std::filesystem::path::u8string
std::filesystem::path::wstring
std::filesystem::permissions
std::filesystem::perms
std::filesystem::proximate
std::filesystem::read_symlink
std::filesystem::recursive_directory_iterator
std::filesystem::recursive_directory_iterator::depth
std::filesystem::recursive_directory_iterator::disable_recursion_pending
std::filesystem::recursive_directory_iterator::increment
std::filesystem::recursive_directory_iterator::operator->
std::filesystem::recursive_directory_iterator::operators
std::filesystem::recursive_directory_iterator::operators
std::filesystem::recursive_directory_iterator::options
std::filesystem::recursive_directory_iterator::pop
std::filesystem::recursive_directory_iterator::recursion_pending
std::filesystem::recursive_directory_iterator::recursive_directory_iterator
std::filesystem::relative
std::filesystem::remove
std::filesystem::remove_all
std::filesystem::rename
std::filesystem::resize_file
std::filesystem::space
std::filesystem::status
std::filesystem::status_known
std::filesystem::swap(std::filesystem::path)
std::filesystem::symlink_status
std::filesystem::system_complete
std::filesystem::temp_directory_path
std::filesystem::u8path
std::filesystem::weakly_canonical
输入/输出 | Input/output
迭代器 | Iterator
关键词 | Keywords
语言 | Language
本土化 | Localizations
数字 | Numerics
规律表达 | Regular expressions
标准库头文件 | Standard library header files
字符串 | Strings
线程支持 | Thread support
应用 | Utilities
Clojure 1.8
Codeigniter 3
CSS
Docker 17
Electron
Elixir 1.5
Erlang 20
Eslint
Express
Git
Go
HTML
HTTP
Immutable 3.8.1
JavaScript
Lodash 4
Lua 5.3
Nginx
PHP
Phpunit 6
Python
React
React native
Redis
Redux
Ruby 2.4
Sass
Scikit image
Socket.IO
Sqlite
SVG
TensorFlow Guide
Typescript
Underscore
Vue 2
Webpack
Xslt & Xpath
Yarn
RxJS 5
Rollup.js
Babel
Parcel
MobX
Koa
Angular
Gulp
Grunt
Stylelint
Standard JS
Element UI
iView UI
Lavas
Mint UI
PostCSS
ThinkJS
Nest
npm
Node.js教程
JSON教程
Groovy教程
vb.net教程
Storm入门教程
Hibernate 教程
Slick教程
MongoDB教程
Yii 2.0

std::filesystem::space_info

STD：：文件系统：：space[医]信息

Defined in header ​​
struct space_info { std::uintmax_t capacity; std::uintmax_t free; std::uintmax_t available; };​(since C++17)

所确定的文件系统信息。空间...

成员的含义如下：

  • capacity-文件系统的总大小，以字节为单位

  • free-文件系统上的空闲空间，以字节为单位

  • available-非特权进程可用的空闲空间%28可等于或少于free%29

例

二次

#include <iostream>
#include <filesystem>
namespace fs = std::filesystem;
int main()
{
    fs::space_info devi = fs::space("/dev/null"
    fs::space_info tmpi = fs::space("/tmp"
 
    std::cout << ".        Capacity       Free      Available\n"
              << "/dev:   " << devi.capacity << "   "
              << devi.free << "   " << devi.available  << '\n'
              << "/tmp: " << tmpi.capacity << " "
              << tmpi.free << " " << tmpi.available  << '\n';
}

二次

可能的产出：

二次

.         Capacity       Free      Available
/dev:   4175114240   4175110144   4175110144
/tmp: 420651237376 411962273792 390570749952

二次

另见

space (C++17)determines available free space on the file system (function)

 © cppreference.com

在CreativeCommonsAttribution下授权-ShareAlike未移植许可v3.0。

http：//en.cppreference.com/w/cpp/filesystem/space[医]信息

  • 黔ICP备2021005045号