Difference between revisions of "cpp/locale/ispunct"
From cppreference.com
m (r2.7.3) (Robot: Adding de, es, fr, it, ja, pt, ru, zh) |
m (Shorten template names. Use {{lc}} where appropriate.) |
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}} | }} | ||
| − | Checks if the given character is classified as an punctuation character by the given locale's {{ | + | Checks if the given character is classified as an punctuation character by the given locale's {{lc|std::ctype}} facet. |
===Parameters=== | ===Parameters=== | ||
| − | {{ | + | {{par begin}} |
| − | {{ | + | {{par | ch | character}} |
| − | {{ | + | {{par | loc | locale }} |
| − | {{ | + | {{par end}} |
===Return value=== | ===Return value=== | ||
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===See also=== | ===See also=== | ||
| − | {{ | + | {{dsc begin}} |
| − | {{ | + | {{dsc inc | cpp/string/byte/dcl list ispunct}} |
| − | {{ | + | {{dsc inc | cpp/string/wide/dcl list iswpunct}} |
| − | {{ | + | {{dsc end}} |
[[de:cpp/locale/ispunct]] | [[de:cpp/locale/ispunct]] | ||
Revision as of 19:09, 31 May 2013
| Defined in header <locale>
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| template< class charT > bool ispunct( charT ch, const locale& loc ); |
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Checks if the given character is classified as an punctuation character by the given locale's std::ctype facet.
Contents |
Parameters
| ch | - | character |
| loc | - | locale |
Return value
Returns true if the character is classified as punctuation, false otherwise.
Possible implementation
template< class charT > bool ispunct( charT ch, const std::locale& loc ) { return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::punct, ch); } |
Example
Demonstrates the use of ispunct() with different locales (OS-specific).
Run this code
#include <iostream> #include <locale> int main() { const wchar_t c = L'\u214b'; // upside-down ampersand std::locale loc1("C"); std::cout << "ispunct('⅋', C locale) returned " << std::boolalpha << std::ispunct(c, loc1) << '\n'; std::locale loc2("en_US.UTF-8"); std::cout << "ispunct('⅋', Unicode locale) returned " << std::boolalpha << std::ispunct(c, loc2) << '\n'; }
Output:
isalpha('⅋', C locale) returned false
isalpha('⅋', Unicode locale) returned true
