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Regard whitespace Rev 6626 → Rev 6625

/contrib/sdk/sources/newlib/libc/Tupfile.lua
385,6 → 385,7
"iprintf.c",
"iscanf.c",
"makebuf.c",
"mbstowcs.c",
"mktemp.c",
"open_memstream.c",
"perror.c",
/contrib/sdk/sources/newlib/libc/stdio/mbstowcs.c
0,0 → 1,83
/*
FUNCTION
<<mbstowcs>>---minimal multibyte string to wide char converter
 
INDEX
mbstowcs
 
ANSI_SYNOPSIS
#include <stdlib.h>
int mbstowcs(wchar_t *restrict <[pwc]>, const char *restrict <[s]>, size_t <[n]>);
 
TRAD_SYNOPSIS
#include <stdlib.h>
int mbstowcs(<[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 <<mbstowcs>>. In this case, the
only ``multi-byte character sequences'' recognized are single bytes,
and they are ``converted'' to wide-char versions simply by byte
extension.
 
When _MB_CAPABLE is defined, this routine calls <<_mbstowcs_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 <<mbstowcs>> returns <<0>> if
<[s]> is <<NULL>> or is the empty string;
it returns <<-1>> if _MB_CAPABLE and one of the
multi-byte characters is invalid or incomplete;
otherwise it returns the minimum of: <<n>> or the
number of multi-byte characters in <<s>> plus 1 (to
compensate for the nul character).
If the return value is -1, the state of the <<pwc>> string is
indeterminate. If the input has a length of 0, the output
string will be modified to contain a wchar_t nul terminator.
 
PORTABILITY
<<mbstowcs>> is required in the ANSI C standard. However, the precise
effects vary with the locale.
 
<<mbstowcs>> requires no supporting OS subroutines.
*/
 
#ifndef _REENT_ONLY
 
#include <newlib.h>
#include <stdlib.h>
#include <wchar.h>
 
size_t
_DEFUN (mbstowcs, (pwcs, s, n),
wchar_t *__restrict pwcs _AND
const char *__restrict s _AND
size_t n)
{
#ifdef _MB_CAPABLE
mbstate_t state;
state.__count = 0;
return _mbstowcs_r (_REENT, pwcs, s, n, &state);
#else /* not _MB_CAPABLE */
int count = 0;
if (n != 0) {
do {
if ((*pwcs++ = (wchar_t) *s++) == 0)
break;
count++;
} while (--n != 0);
}
return count;
#endif /* not _MB_CAPABLE */
}
 
#endif /* !_REENT_ONLY */