iswupper()

Test a character to see if it's an uppercase letter

Synopsis:

#include <wctype.h>

int iswupper( wint_t wc );

Arguments:

wc

The wide character you want to test.

Library:

libc

Use the -l c option to qcc to link against this library. This library is usually included automatically.

Description:

The iswupper() function tests if the argument wc is an uppercase wide character of the class upper. In the C locale, this class includes the characters from A through Z.

Returns:

A nonzero value if the character is a member of the class upper, or 0 otherwise.

Classification:

ANSI, POSIX 1003.1

Caveats:

The result is valid only for wchar_t arguments and WEOF.

See also:

isupper(), iswalnum(), iswalpha(), iswcntrl(), iswctype(), iswdigit(), iswgraph(), iswlower(), iswprint(), iswpunct(), iswspace(), iswxdigit(), setlocale(), towlower(), towupper()