wcsncpy - copy a fixed-size string of wide characters
#include <wchar.h>
wchar_t *wcsncpy(wchar_t *dest, const wchar_t *src, size_t n);
The wcsncpy() function is the wide-character equivalent of the strncpy(3) function. It copies at most n
wide characters from the wide-character string pointed to by src
, including the terminating null wide character (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 null wide characters. If the length wcslen(src)
is greater than or equal to n
, the string pointed to by dest
will not be terminated by a null wide character.
The strings may not overlap.
The programmer must ensure that there is room for at least n
wide characters at dest
.
wcsncpy() returns dest
.
For an explanation of the terms used in this section, see attributes(7).
Interface | Attribute | Value |
wcsncpy() | Thread safety | MT-Safe |
POSIX.1-2001, POSIX.1-2008, C99.
strncpy(3)
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