wcpncpy(3)                 Library Functions Manual                 wcpncpy(3)

NAME
       wcpncpy - copy a fixed-size string of wide characters, returning a
       pointer to its end

LIBRARY
       Standard C library (libc, -lc)

SYNOPSIS
       #include <wchar.h>

       wchar_t *wcpncpy(wchar_t dest[restrict .n],
                        const wchar_t src[restrict .n],
                        size_t n);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       wcpncpy():
           Since glibc 2.10:
               _POSIX_C_SOURCE >= 200809L
           Before glibc 2.10:
               _GNU_SOURCE

DESCRIPTION
       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.

       The strings may not overlap.

       The programmer must ensure that there is room for at least n wide
       characters at dest.

RETURN VALUE
       wcpncpy() returns a pointer to the last wide character written, that
       is, dest+n-1.

ATTRIBUTES
       For an explanation of the terms used in this section, see
       attributes(7).

       +--------------------------------------------+---------------+---------+
       |Interface                                   | Attribute     | Value   |
       +--------------------------------------------+---------------+---------+
       |wcpncpy ()                                  | Thread safety | MT-Safe |
       +--------------------------------------------+---------------+---------+
STANDARDS
       POSIX.1-2008.

SEE ALSO
       stpncpy(3), wcsncpy(3)

Linux man-pages 6.9.1             2024-06-15                        wcpncpy(3)