iswblank()
QNX SDP8.0C Library ReferenceAPIDeveloper
Test a wide character to see if it's a blank character
Synopsis:
#include <wctype.h>
int iswblank( wint_t wc );
Arguments:
- wc
- The wide character you want to test. This argument must be a wide-character code that corresponds to a valid character in the current locale, or must be WEOF; otherwise, the function's behavior is undefined.
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The iswblank() function tests if the argument wc is a
wide character of the class blank.
In the C locale, this class includes the space character and
\t
(horizontal tab).
Returns:
A nonzero value if the character is a member of the class blank, or 0 otherwise.
Classification:
Safety: | |
---|---|
Cancellation point | No |
Signal handler | Yes |
Thread | Yes |
Caveats:
The result is valid only for wchar_t arguments and WEOF.
Page updated: