iswblank, or iswblank_l Subroutines

Purpose

Tests for a blank wide-character code.

Syntax

#include <wctype.h>

int iswblank (wc)
wint_t wc;

int iswblank_l(wc, Locale)
wint_t wc;
locale_t Locale;

Description

The iswblank and iswblank_l subroutines test whether the wc parameter is a wide-character code representing a character of class blank in the program's current locale or in the locale represented by Locale.

The wc parameter is a wint_t, the value of which the application ensures is a wide-character code corresponding to a valid character in the current locale, or equal to the value of the macro WEOF. If the parameter has any other value, the behavior is undefined.

Parameters

Item	Description
wc	Specifies the value to be tested.
Locale	Specifies the locale, in which the character is tested.

Return Values

The iswblank and iswblank_l subroutines return a nonzero value if the wc parameter is a blank wide-character code; otherwise, it returns a 0.