The ifx_gl_iswgraph() function
The ifx_gl_iswgraph() function determines whether a wide character contains a graphical (visible) character.
Syntax
#include <ifxgls.h>
...
int ifx_gl_iswgraph(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_iswgraph() function tests whether wc is in the graph character class according to the rules of the current locale. The graph character class contains all characters that have a visual representation, including characters from the alpha, digit, punct, and xdigit classes. In addition, all placeholder characters used in round-trip code-set conversion are in this class.
Characters in the graph class are also in the print class. No characters in the blank, space, or cntrl classes are in the graph class.
Locale information
The LC_CTYPE category of the current locale affects the behavior of this function because it defines the graph 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.