The ifx_gl_ismprint() function
The ifx_gl_ismprint() function determines whether a multibyte character contains a printable character.
Syntax
#include <ifxgls.h>
...
int ifx_gl_ismprint(mb, mb_byte_limit)
gl_mchar_t *mb;
int mb_byte_limit;- mb
- A pointer to the multibyte character whose character classification you want to determine.
- mb_byte_limit
- The integer number of bytes to read from mb to try to form a complete multibyte character. If mb_byte_limit is IFX_GL_NO_LIMIT, the ifx_gl_ismprint() function reads as many bytes as necessary from mb to form a complete character.
| Valid in client application | Valid in DataBlade® UDR |
|---|---|
| Yes | Yes |
Usage
The ifx_gl_ismprint() function tests whether mb is in the print character class according to the rules of the current locale. The print character class contains all characters that have a visual representation or are in the space class but not in the cntrl class.
All characters from the alpha, digit, punct, xdigit, and graph classes are also in this class. No characters in the cntrl class are in this class.
Locale information
The LC_CTYPE category of the current locale affects the behavior of this function because it defines the print character class.
Return values
- >0
- The *mb character is in the print 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
one of the following values.
- IFX_GL_EILSEQ
- The *mb value is not a valid multibyte character.
- IFX_GL_EINVAL
- The function cannot determine whether mb is a valid multibyte character because it would need to read more than mb_byte_limit bytes from mb. If mb_byte_limit is less than or equal to 0, this function always returns this error.