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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdlib/] [wcsrtombs.c] - Rev 148
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#include <reent.h> #include <newlib.h> #include <wchar.h> #include <stdlib.h> #include <stdio.h> #include <errno.h> size_t _DEFUN (_wcsrtombs_r, (r, dst, src, len, ps), struct _reent *r _AND char *dst _AND const wchar_t **src _AND size_t len _AND mbstate_t *ps) { char *ptr = dst; char buff[10]; wchar_t *pwcs; size_t n; int i; #ifdef _MB_CAPABLE if (ps == NULL) { _REENT_CHECK_MISC(r); ps = &(_REENT_WCSRTOMBS_STATE(r)); } #endif /* If no dst pointer, treat len as maximum possible value. */ if (dst == NULL) len = (size_t)-1; n = 0; pwcs = (wchar_t *)(*src); while (n < len) { int count = ps->__count; wint_t wch = ps->__value.__wch; int bytes = _wcrtomb_r (r, buff, *pwcs, ps); if (bytes == -1) { r->_errno = EILSEQ; ps->__count = 0; return (size_t)-1; } if (n + bytes <= len) { n += bytes; if (dst) { for (i = 0; i < bytes; ++i) *ptr++ = buff[i]; ++(*src); } if (*pwcs++ == 0x00) { if (dst) *src = NULL; ps->__count = 0; return n - 1; } } else { /* not enough room, we must back up state to before _wctomb_r call */ ps->__count = count; ps->__value.__wch = wch; len = 0; } } return n; } #ifndef _REENT_ONLY size_t _DEFUN (wcsrtombs, (dst, src, len, ps), char *dst _AND const wchar_t **src _AND size_t len _AND mbstate_t *ps) { return _wcsrtombs_r (_REENT, dst, src, len, ps); } #endif /* !_REENT_ONLY */
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