bionic (3) wcpncpy.3.gz

NAME

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

SYNOPSIS

       #include <wchar.h>

       wchar_t *wcpncpy(wchar_t *dest, const wchar_t *src, 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 │
       └──────────┴───────────────┴─────────┘

CONFORMING TO

       POSIX.1-2008.

SEE ALSO

       stpncpy(3), wcsncpy(3)

COLOPHON

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