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Diffstat (limited to 'newlib/libc/stdlib/mblen.c')
-rw-r--r-- | newlib/libc/stdlib/mblen.c | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/newlib/libc/stdlib/mblen.c b/newlib/libc/stdlib/mblen.c deleted file mode 100644 index d9b774e..0000000 --- a/newlib/libc/stdlib/mblen.c +++ /dev/null @@ -1,66 +0,0 @@ -/* -FUNCTION -<<mblen>>---minimal multibyte length function - -INDEX - mblen - -ANSI_SYNOPSIS - #include <stdlib.h> - int mblen(const char *<[s]>, size_t <[n]>); - -TRAD_SYNOPSIS - #include <stdlib.h> - int mblen(<[s]>, <[n]>) - const char *<[s]>; - size_t <[n]>; - -DESCRIPTION -When MB_CAPABLE is not defined, this is a minimal ANSI-conforming -implementation of <<mblen>>. In this case, the -only ``multi-byte character sequences'' recognized are single bytes, -and thus <<1>> is returned unless <[s]> is the null pointer or -has a length of 0 or is the empty string. - -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 <<mblen>> returns <<0>> if -<[s]> is <<NULL>> or the empty string; it returns <<1>> if not MB_CAPABLE or -the character is a single-byte character; it returns <<-1>> -if the multi-byte character is invalid; otherwise it returns -the number of bytes in the multibyte character. - -PORTABILITY -<<mblen>> is required in the ANSI C standard. However, the precise -effects vary with the locale. - -<<mblen>> requires no supporting OS subroutines. -*/ - -#ifndef _REENT_ONLY - -#include <stdlib.h> - -int -_DEFUN (mblen, (s, n), - const char *s _AND - size_t n) -{ -#ifdef MB_CAPABLE - static int state; - - return _mbtowc_r (_REENT, NULL, s, n, &state); -#else /* not MB_CAPABLE */ - if (s == NULL || *s == '\0') - return 0; - if (n == 0) - return -1; - return 1; -#endif /* not MB_CAPABLE */ -} - -#endif /* !_REENT_ONLY */ |