_ismbslead, _ismbstrail
int_ismbslead(constunsignedchar*string,constunsignedchar*current);
int_ismbstrail(constunsignedchar*string,constunsignedchar*current);
| Routine | Required Header | Optional Headers | Compatibility |
| _ismbslead | <mbctype.h> or <mbstring.h> | <ctype.h>,1 <limits.h>, <stdlib.h> | Win 95, Win NT |
| _ismbstrail | <mbctype.h> or <mbstring.h> | <ctype.h>,1 <limits.h>, <stdlib.h> | Win 95, Win NT |
1 For manifest constants for the test conditions.
For additional compatibility information, see Compatibility in the Introduction.
Libraries
| LIBC.LIB | Single thread static library, retail version |
| LIBCMT.LIB | Multithread static library, retail version |
| MSVCRT.LIB | Import library for MSVCRT.DLL, retail version |
Return Value
_ismbslead and _ismbstrail return –1 if the character is a lead or trail byte, respectively. Otherwise they return zero.
Parameters
string
Pointer to start of string or previous known lead byte
current
Pointer to position in string to be tested
Remarks
The _ismbslead and _ismbstrail routines perform context-sensitive tests for multibyte-character string lead and trail bytes; they determine whether a given substring pointer points to a lead byte or a trail byte. _ismbslead and _ismbstrail are slower than their _ismbblead and _ismbbtrail counterparts because they take the string context into account.
Character Classification Routines | _ismbc Function Overview
See Also is, isw Function Overview, _ismbb Function Overview