MBSTOWCS(3) | Library Functions Manual | MBSTOWCS(3) |
mbstowcs
—
#include <stdlib.h>
size_t
mbstowcs
(wchar_t
* restrict pwcs, const
char * restrict s, size_t
n);
mbstowcs
() converts a nul-terminated multibyte character
string pointed to by s to the corresponding
wide-character string and stores it in the array pointed to by
pwcs. This function may modify the first at most
n elements of the array pointed to by
pwcs. Each character will be converted as if
mbtowc(3) is continuously
called, except the internal state of
mbtowc(3) will not be affected.
For state-dependent encoding, mbstowcs
()
implies the multibyte character string pointed to by s
always begins with an initial state.
These are the special cases:
mbstowcs
() returns the number of elements to store
the whole wide-character string corresponding to the multibyte character
string pointed to by s. In this case,
n is ignored.mbstowcs
() returns:
MB_CUR_MAX
macro. If the return value is equal to n, the string
pointed to by pwcs will not be nul-terminated.mbstowcs
()
also sets errno to indicate the error.mbstowcs
() may cause an error in the following case:
EILSEQ
]mbstowcs
() function conforms to
ANSI X3.159-1989 (“ANSI C89”).
The restrict qualifier is added at ISO/IEC 9899:1999
(“ISO C99”).
March 16, 2011 | NetBSD 9.0 |