isupper()

Library:  Localization

Function

• Local Index
• Summary
• Synopsis
• Description
• See Also
• Standards Conformance

Local convenience function that determines whether a character is upper case

#include <locale>

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

The isupper() function returns true if the character passed as a parameter is upper case. 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(), isxdigit()

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