WCSNCMP(3) Library Functions Manual WCSNCMP(3)

wcsncmp — compare part of two wide-character strings

#include <wchar.h>

int wcsncmp(const wchar_t *ws1, const wchar_t *ws2, size_t n);

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 IEEE Std 1003.1-2001 (“POSIX.1”) defers to the ISO C standard.

The wcsncmp () function shall compare not more than wide-character codes (wide-character codes that follow a null wide-character code are not compared) from the array pointed to by ws1 to the array 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.

Upon successful completion, wcsncmp () shall return an integer greater than, equal to, or less than 0, if the possibly null-terminated array pointed to by ws1 is greater than, equal to, or less than the possibly null-terminated array pointed to by ws2, respectively.

No errors are defined.

None.

None.

None.

None.

wcscmp(3), the Base Definitions volume of IEEE Std 1003.1-2001 (“POSIX.1”), <wchar.h>

First released in Issue 4. Derived from the MSE working draft.

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January 1, 2004 posix.fail