mbstowcs3
Convert a character string to a wide-character string
Usage
#include <stdlib.h>
size_t
mbstowcs(wchar_t * restrict wcstring, const char * restrict mbstring, size_t nwchars);
Library
Standard C Library (libc, -lc)
Overview
The mbstowcs() function converts a multibyte character string mbstring beginning in the initial conversion state into a wide character string wcstring. No more than nwchars wide characters are stored. A terminating null wide character is appended if there is room.
Return values
The mbstowcs() function returns the number of wide characters converted, not counting any terminating null wide character, or -1 if an invalid multibyte character was encountered.
Errors
The mbstowcs() function will fail if:
- [EILSEQ]
-
An invalid multibyte sequence was detected.
- [EINVAL]
-
The conversion state is invalid.
Releases
83 releases since FreeBSD 2.2.2-RELEASE; the text changed 44 times.