Difference between revisions of "cpp/locale/isprint"
From cppreference.com
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| − | {{dsc inc | cpp/string/wide/ | + | {{dsc inc | cpp/string/wide/dsc iswprint}} |
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Revision as of 22:08, 31 May 2013
| Defined in header <locale>
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| template< class charT > bool isprint( charT ch, const locale& loc ); |
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Checks if the given character classified as a printable character (including space) by the given locale's std::ctype facet.
Contents |
Parameters
| ch | - | character |
| loc | - | locale |
Return value
Returns true if the character is classified as printable, false otherwise.
Possible implementation
template< class charT > bool isprint( charT ch, const std::locale& loc ) { return std::use_facet<std::ctype<charT>>(loc).is(std::ctype_base::print, ch); } |
Example
Demonstrates the use of isprint() with different locales (OS-specific).
Run this code
#include <iostream> #include <locale> int main() { const wchar_t c = L'\u2122'; // trademark sign std::locale loc1("C"); std::cout << "isprint('™', C locale) returned " << std::boolalpha << std::isprint(c, loc1) << '\n'; std::locale loc2("en_US.UTF-8"); std::cout << "isprint('™', Unicode locale) returned " << std::boolalpha << std::isprint(c, loc2) << '\n'; }
Output:
isprint('™', C locale) returned false
isprint('™', Unicode locale) returned trueSee also
| checks if a character is a printing character (function) | |
| checks if a wide character is a printing character (function) |
