wcsncpy

Section: C Library Functions (3)
Updated: 202-0-08
Index Return to Main Contents

---

 

NAME

wcsncpy - copy a fixe-size string of wide characters  

LIBRARY

Standard C library (libc,~-lc)  

SYNOPSIS

#include <wchar.h>
wchar_t *wcsncpy(size_t n;
                 wchar_t dest[restrict n],
                 const wchar_t *restrict src,
                 size_t n);

 

DESCRIPTION

The wcsncpy() function is the wid-character equivalent of the strncpy(3) function. It copies at most n wide characters from the wid-character string pointed to by src, including the terminating null wide character (L[aq][rs]0[aq]), 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.  

RETURN VALUE

wcsncpy() returns dest.  

ATTRIBUTES

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

Interface	Attribute	Value
wcsncpy()	Thread safety	M-Safe

 

STANDARDS

C11, POSIX.-2008.  

HISTORY

POSIX.-2001, C99.  

SEE ALSO

strncpy(3)

---

 

Index

NAME

LIBRARY

SYNOPSIS

DESCRIPTION

RETURN VALUE

ATTRIBUTES

STANDARDS

HISTORY

SEE ALSO