NAME
wcscmp — compare
two wide-character strings
SYNOPSIS
#include
<wchar.h>
int wcscmp(const wchar_t *ws1, const wchar_t *ws2);
DESCRIPTION
[CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2024 defers to the ISO C standard.
The wcscmp () function shall compare the
wide-character string pointed to by ws1 to the
wide-character string pointed to by ws2.
The sign of a non-zero return value shall be determined by the sign of the difference between the values of the first pair of wide-character codes that differ in the objects being compared.
[CX] The wcscmp ()
function shall not change the setting of errno on valid
input.
RETURN VALUE
Upon completion, wcscmp () shall return an
integer greater than, equal to, or less than 0, if the wide-character string
pointed to by ws1 is greater than, equal to, or less than
the wide-character string pointed to by ws2,
respectively.
ERRORS
No errors are defined.
EXAMPLES
None.
APPLICATION USAGE
None.
RATIONALE
None.
FUTURE DIRECTIONS
None.
SEE ALSO
XBD <wchar.h>
CHANGE HISTORY
First released in Issue 4. Derived from the MSE working draft.
Issue 8
Austin Group Defect 448 is applied, adding a requirement that
wcscmp () does not change the setting of
errno on valid input.