The ifx_gl_iswblank() function
The ifx_gl_iswblank() function determines whether a wide character contains a horizontal-space character.
Syntax
#include <ifxgls.h>
...
int ifx_gl_iswblank(wc)
gl_wchar_t *wc;- wc
- A pointer to the wide character whose character classification you want to determine.
| Valid in client application | Valid in DataBlade® UDR |
|---|---|
| Yes | Yes |
Usage
The ifx_gl_iswblank() function tests whether wc is in the blank character class according to the rules of the current locale. The blank character class includes the single-byte space (ASCII 0x020) and tab character (ASCII 0x009, ^I) plus any multibyte version of these characters that the locale defines. Characters in the blank class are also in the space class. No characters in the upper, lower, alpha, digit, xdigit, punct, or graph classes are in the blank class.
Locale information
The LC_CTYPE category of the current locale affects the behavior of this function because it defines the blank character class.
Return values
- >0
- The wc character is in the digit character class.
- 0
- The function was not successful, and the error number is set to indicate the cause. See the Errors section.
Errors
This function does not return a unique
value to indicate an error. If an error occurred, the function returns
0 and sets the ifx_gl_lc_errno() error number to
the following value.
- IFX_GL_EILSEQ
- The *wc value is not a valid wide character.