Linux cli command wcpncpy

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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’�’), 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’�’ characters. If the length wcslen(src) is greater than or equal to n, the string pointed to by dest will not be L’�’ 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).

InterfaceAttributeValue

wcpncpy()

Thread safetyMT-Safe

STANDARDS

POSIX.1-2008.

SEE ALSO

stpncpy(3), wcsncpy(3)

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