function template
<locale>
std::ispunct
template <class charT> bool ispunct (charT c, const locale& loc);
Check if character is a punctuation character using locale
Checks whether c is a punctuation character using the ctype facet of locale loc, returning the same as if ctype::is is called as:
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use_facet < ctype<charT> > (loc).is (ctype_base::punct, c)
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This function template overloads the C function ispunct (defined in <cctype>).
Parameters
- c
- Character to be checked.
- loc
- Locale to be used. It shall have a ctype facet.
The template argument charT is the character type.
Return Value
true if indeed c is a punctuation character.
false otherwise.
Example
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// ispunct example (C++)
#include <iostream> // std::cout
#include <string> // std::string
#include <locale> // std::locale, std::ispunct
int main ()
{
std::locale loc;
std::string str="Hello, welcome!";
int cx = 0;
for (std::string::iterator it = str.begin(); it!=str.end(); ++it)
if ( std::ispunct(*it,loc) ) ++cx;
std::cout << "The sentence contains " << cx << " punctuation characters.\n";
return 0;
}
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Output:
The sentence contains 2 punctuation characters.
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Data races
Both loc and its ctype facet are accessed.
Exception safety
Strong guarantee: if an exception is thrown, there are no effects.
See also
- ctype
- Character type facet (class template)
- ispunct (cctype)
- Check if character is a punctuation character (function)
- isgraph
- Check if character has graphical representation using locale (function template)
- iscntrl
- Check if character is a control character using locale (function template)