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mirror of git://sourceware.org/git/newlib-cygwin.git synced 2025-01-16 19:40:07 +08:00
Jeff Johnston 9c64d2a7ba 2002-09-09 Jeff Johnston <jjohnstn@redhat.com>
* libc/include/sys/_types.h (_mbstate_t): Changed to use
        unsigned char internally.
        * libc/sys/linux/sys/_types.h: Ditto.
        * libc/include/sys/reent.h
        * libc/stdlib/mblen.c (mblen): Use function-specific state
        value from default reentrancy structure.
        * libc/stdlib/mblen_r.c (_mblen_r):  If return code from
        _mbtowc_r is less than 0, reset state __count value and
        return -1.
        * libc/stdlib/mbrlen.c (mbrlen): If the input state pointer
        is NULL, use the function-specific pointer provided in the
        default reentrancy structure.
        * libc/stdlib/mbrtowc.c: Add reentrant form of function.
        If input state pointer is NULL, use function-specific area
        provided in reentrancy structure.
        * libc/stdlib/mbsrtowcs.c: Ditto.
        * libc/stdlib/wcrtomb.c: Ditto.
        * libc/stdlib/wcsrtombs.c: Ditto.
        * libc/stdlib/mbstowcs.c: Reformat.
        * libc/stdlib/wcstombs.c: Ditto.
        * libc/stdlib/mbstowcs_r.c (_mbstowcs_r): If an error occurs,
        reset the state's __count value and return -1.
        * libc/stdlib/mbtowc.c: Ditto.
        * libc/stdlib/mbtowc_r.c (_mbtowc_r): Add restartable functionality.
        If number of bytes is used up before completing a valid multibyte
        character, return -2 and save the state.
        * libc/stdlib/wctomb_r.c (_wctomb_r): Define __state as __count
        and change some __count references to __state for clarity.
2002-09-09 21:42:14 +00:00

20 lines
321 B
C

#include <wchar.h>
#include <stdlib.h>
#include <stdio.h>
#include <reent.h>
#include <errno.h>
size_t
mbrlen(const char *s, size_t n, mbstate_t *ps)
{
#ifdef MB_CAPABLE
if (ps == NULL)
{
_REENT_CHECK_MISC(_REENT);
ps = &(_REENT_MBRLEN_STATE(_REENT));
}
#endif
return mbrtowc(NULL, s, n, ps);
}