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NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ATTRIBUTES | CONFORMING TO | SEE ALSO | COLOPHON |
WCPNCPY(3) Linux Programmer's Manual WCPNCPY(3)
wcpncpy - copy a fixed-size string of wide characters, returning a
pointer to its end
#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
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.
wcpncpy() returns a pointer to the last wide character written, that
is, dest+n-1.
For an explanation of the terms used in this section, see
attributes(7).
┌──────────┬───────────────┬─────────┐
│Interface │ Attribute │ Value │
├──────────┼───────────────┼─────────┤
│wcpncpy() │ Thread safety │ MT-Safe │
└──────────┴───────────────┴─────────┘
POSIX.1-2008.
stpncpy(3), wcsncpy(3)
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GNU 2016-03-15 WCPNCPY(3)
Pages that refer to this page: stpncpy(3), signal-safety(7)