diff options
Diffstat (limited to 'newlib/libc/stdlib/mbtowc.c')
-rw-r--r-- | newlib/libc/stdlib/mbtowc.c | 81 |
1 files changed, 0 insertions, 81 deletions
diff --git a/newlib/libc/stdlib/mbtowc.c b/newlib/libc/stdlib/mbtowc.c deleted file mode 100644 index 5e34fe3..0000000 --- a/newlib/libc/stdlib/mbtowc.c +++ /dev/null @@ -1,81 +0,0 @@ -/* -FUNCTION -<<mbtowc>>---minimal multibyte to wide char converter - -INDEX - mbtowc - -ANSI_SYNOPSIS - #include <stdlib.h> - int mbtowc(wchar_t *<[pwc]>, const char *<[s]>, size_t <[n]>); - -TRAD_SYNOPSIS - #include <stdlib.h> - int mbtowc(<[pwc]>, <[s]>, <[n]>) - wchar_t *<[pwc]>; - const char *<[s]>; - size_t <[n]>; - -DESCRIPTION -When MB_CAPABLE is not defined, this is a minimal ANSI-conforming -implementation of <<mbtowc>>. In this case, -only ``multi-byte character sequences'' recognized are single bytes, -and they are ``converted'' to themselves. -Each call to <<mbtowc>> copies one character from <<*<[s]>>> to -<<*<[pwc]>>>, unless <[s]> is a null pointer. The argument n -is ignored. - -When MB_CAPABLE is defined, this routine calls <<_mbtowc_r>> to perform -the conversion, passing a state variable to allow state dependent -decoding. The result is based on the locale setting which may -be restricted to a defined set of locales. - -RETURNS -This implementation of <<mbtowc>> returns <<0>> if -<[s]> is <<NULL>> or is the empty string; -it returns <<1>> if not MB_CAPABLE or -the character is a single-byte character; it returns <<-1>> -if n is <<0>> or the multi-byte character is invalid; -otherwise it returns the number of bytes in the multibyte character. -If the return value is -1, no changes are made to the <<pwc>> -output string. If the input is the empty string, a wchar_t nul -is placed in the output string and 0 is returned. If the input -has a length of 0, no changes are made to the <<pwc>> output string. - -PORTABILITY -<<mbtowc>> is required in the ANSI C standard. However, the precise -effects vary with the locale. - -<<mbtowc>> requires no supporting OS subroutines. -*/ - -#ifndef _REENT_ONLY - -#include <stdlib.h> - -int -_DEFUN (mbtowc, (pwc, s, n), - wchar_t *pwc _AND - const char *s _AND - size_t n) -{ -#ifdef MB_CAPABLE - static int state; - - return _mbtowc_r (_REENT, pwc, s, n, &state); -#else /* not MB_CAPABLE */ - if (s == NULL) - return 0; - if (n == 0) - return -1; - if (pwc) - *pwc = (wchar_t) *s; - return (*s != '\0'); -#endif /* not MB_CAPABLE */ -} - -#endif /* !_REENT_ONLY */ - - - - |