wcpncpy - copy a fixed-size string of wide characters, returning a pointer to
wchar_t *wcpncpy(wchar_t *dest, const wchar_t *src, size_t n);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
The wcpncpy() function is the wide-character equivalent of the
stpncpy(3) function. It copies at most n wide characters from
the wide-character string pointed to by src, including the terminating
null wide (L'\0'), to the array pointed to by dest. Exactly n
wide characters are written at dest. If the length wcslen(src)
is smaller than n, the remaining wide characters in the array pointed
to by dest are filled with L'\0' characters. If the length
wcslen(src) is greater than or equal to n, the string pointed to
by dest will not be L'\0' terminated.
- Since glibc 2.10:
- _POSIX_C_SOURCE >= 200809L
- Before glibc 2.10:
The strings may not overlap.
The programmer must ensure that there is room for at least
n wide characters at dest.
wcpncpy() returns a pointer to the last wide character written, that is,
For an explanation of the terms used in this section, see attributes(7).
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