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
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
Null-terminated byte strings
Null-terminated multibyte strings
Null-terminated wide strings
operator<<(std::basic_string_view)
operators (std::basic_string)
operators (std::basic_string)
operators (std::basic_string_view)
std::atof
std::atoi
std::atol
std::atoll
std::basic_string
std::basic_string::append
std::basic_string::assign
std::basic_string::at
std::basic_string::back
std::basic_string::basic_string
std::basic_string::begin
std::basic_string::capacity
std::basic_string::cbegin
std::basic_string::cend
std::basic_string::clear
std::basic_string::compare
std::basic_string::copy
std::basic_string::crbegin
std::basic_string::crend
std::basic_string::c_str
std::basic_string::data
std::basic_string::empty
std::basic_string::end
std::basic_string::erase
std::basic_string::find
std::basic_string::find_first_not_of
std::basic_string::find_first_of
std::basic_string::find_last_not_of
std::basic_string::find_last_of
std::basic_string::front
std::basic_string::get_allocator
std::basic_string::insert
std::basic_string::length
std::basic_string::max_size
std::basic_string::npos
std::basic_string::operator basic_string_view
std::basic_string::operator[]
std::basic_string::pop_back
std::basic_string::push_back
std::basic_string::rbegin
std::basic_string::rend
std::basic_string::replace
std::basic_string::reserve
std::basic_string::resize
std::basic_string::rfind
std::basic_string::shrink_to_fit
std::basic_string::size
std::basic_string::substr
std::basic_string::swap
std::basic_string_view
std::basic_string_view::at
std::basic_string_view::back
std::basic_string_view::basic_string_view
std::basic_string_view::begin
std::basic_string_view::cbegin
std::basic_string_view::cend
std::basic_string_view::compare
std::basic_string_view::copy
std::basic_string_view::crbegin
std::basic_string_view::crend
std::basic_string_view::data
std::basic_string_view::empty
std::basic_string_view::end
std::basic_string_view::find
std::basic_string_view::find_first_not_of
std::basic_string_view::find_first_of
std::basic_string_view::find_last_not_of
std::basic_string_view::find_last_of
std::basic_string_view::front
std::basic_string_view::length
std::basic_string_view::max_size
std::basic_string_view::npos
std::basic_string_view::operator[]
std::basic_string_view::rbegin
std::basic_string_view::remove_prefix
std::basic_string_view::remove_suffix
std::basic_string_view::rend
std::basic_string_view::rfind
std::basic_string_view::size
std::basic_string_view::substr
std::basic_string_view::swap
std::btowc
std::c16rtomb
std::c32rtomb
std::char_traits
std::char_traits::assign
std::char_traits::compare
std::char_traits::copy
std::char_traits::eof
std::char_traits::eq
std::char_traits::eq_int_type
std::char_traits::find
std::char_traits::length
std::char_traits::lt
std::char_traits::move
std::char_traits::not_eof
std::char_traits::to_char_type
std::char_traits::to_int_type
std::getline
std::hash
std::hash
std::isalnum
std::isalpha
std::isblank
std::iscntrl
std::isdigit
std::isgraph
std::islower
std::isprint
std::ispunct
std::isspace
std::isupper
std::iswalnum
std::iswalpha
std::iswblank
std::iswcntrl
std::iswdigit
std::iswgraph
std::iswlower
std::iswprint
std::iswpunct
std::iswspace
std::iswupper
std::iswxdigit
std::isxdigit
std::literals::string_literals::operator""s
std::literals::string_view_literals::operator""sv
std::mblen
std::mbrlen
std::mbrtoc16
std::mbrtoc32
std::mbrtowc
std::mbsinit
std::mbsrtowcs
std::mbstate_t
std::mbstowcs
std::mbtowc
std::memchr
std::memcmp
std::memcpy
std::memmove
std::memset
std::stod
std::stof
std::stoi
std::stol
std::stold
std::stoll
std::stoul
std::stoull
std::strcat
std::strchr
std::strcmp
std::strcoll
std::strcpy
std::strcspn
std::strerror
std::strlen
std::strncat
std::strncmp
std::strncpy
std::strpbrk
std::strrchr
std::strspn
std::strstr
std::strtod
std::strtof
std::strtoimax
std::strtok
std::strtol
std::strtold
std::strtoll
std::strtoul
std::strtoull
std::strtoumax
std::strxfrm
std::swap(std::basic_string)
std::tolower
std::toupper
std::towctrans
std::towlower
std::towupper
std::to_string
std::to_wstring
std::wcrtomb
std::wcscat
std::wcschr
std::wcscmp
std::wcscoll
std::wcscpy
std::wcscspn
std::wcslen
std::wcsncat
std::wcsncmp
std::wcsncpy
std::wcspbrk
std::wcsrchr
std::wcsrtombs
std::wcsspn
std::wcsstr
std::wcstod
std::wcstof
std::wcstoimax
std::wcstok
std::wcstol
std::wcstold
std::wcstoll
std::wcstombs
std::wcstoul
std::wcstoull
std::wcstoumax
std::wcsxfrm
std::wctob
std::wctomb
std::wctrans
std::wctype
std::wmemchr
std::wmemcmp
std::wmemcpy
std::wmemmove
std::wmemset
Strings library
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::iswctype

STD：：iswctype

Defined in header ​​
int iswctype( std::wint_t wc, std::wctype_t desc ​​

分类宽性wc使用当前C语言环境%27 s LC[医]C型类别desc...

参数

wc-the wide character to classify
desc-the LC_CTYPE category, obtained from a call to std::wctype

返回值

如果字符为非零ch是否将财产识别为desc在LC中[医]当前C语言环境的类型面，否则为零。

例

二次

#include <clocale>
#include <cwctype>
#include <iostream>
bool classify(wchar_t wc, const std::string& cat)
{
    return std::iswctype(wc, std::wctype(cat.c_str())
}
int main()
{
    std::setlocale(LC_ALL, "ja_JP.UTF-8"
    std::cout << "The character \u6c34 is...\n";
    for(std::string s : {"digit", "alpha", "space", "cntrl", "jkanji"})
        std::cout << s << "? " << std::boolalpha << classify(L'\u6c34', s) << '\n';
}

二次

产出：

二次

The character 水 is...
digit? false
alpha? true
space? false
cntrl? false
jkanji? true

二次

另见

wctypelooks up a character classification category in the current C locale (function)

c iswc类型文档

 © cppreference.com

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

http：//en.cppreference.com/w/cpp/string/Wide/iswctype

  • 黔ICP备2021005045号