isxdigit()

Library:  Localization

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Local convenience function that determines whether a character is a hexadecimal digit

#include <locale>

namespace std {
  template <class charT> 
  bool isxdigit(charT c, const locale& loc);
}

The isxdigit() function returns true if the character passed as a parameter is a hexadecimal digit. Otherwise, the function returns false. The check is made using the ctype facet from the locale parameter.

ctype, locale, isalnum(), isalpha(), iscntrl(), isdigit(), isgraph(), islower(), isprint(), ispunct(), isspace(), isupper()

ISO/IEC 14882:1998 -- International Standard for Information Systems -- Programming Language C++, Section 22.1.3.1