function

wctype

wctype_t wctype (const char* property);

Return character property

Returns a value of type wctype_t that corresponds to the character category specified by property.

A specific locale can accept multiple categories in which to classify its characters. At least the following categories are recognized by all locales:

string passed as property	description	equivalent function
`"alnum"`	alphanumerical character	iswalnum
`"alpha"`	letter character	iswalpha
`"blank"`	blank character	iswblank
`"cntrl"`	control character	iswcntrl
`"digit"`	decimal digit character	iswdigit
`"graph"`	character with graphical representation	iswgraph
`"lower"`	lowercase letter character	iswlower
`"print"`	printable character	iswprint
`"punct"`	punctuation character	iswpunct
`"space"`	white-space character	iswspace
`"upper"`	uppercase letter character	iswupper
`"xdigit"`	hexadecimal digit character	iswxdigit

The value returned by this function depends on the LC_CTYPE locale category selected.

Parameters

property: A string identifying a character category (see above).

Return Value

A value of type wctype_t identifying a specific character category.
This value is locale-dependent.

Example

/* wctype example */
#include <stdio.h>
#include <wctype.h>
int main ()
{
  int i=0;
  wchar_t str[] = L"Test String.\n";
  wchar_t c;
  wctype_t check = wctype("lower");
  wctrans_t trans = wctrans("toupper");
  while (str[i])
  {
    c = str[i];
    if (iswctype(c,check)) c = towctrans(c,trans);
    putwchar (c);
    i++;
  }
  return 0;
}