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/*
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms are permitted
* provided that the above copyright notice and this paragraph are
* duplicated in all such forms and that any documentation,
* advertising materials, and other materials related to such
* distribution and use acknowledge that the software was developed
* by the University of California, Berkeley. The name of the
* University may not be used to endorse or promote products derived
* from this software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
/*
FUNCTION
<<putchar>>---write a character (macro)
INDEX
putchar
INDEX
_putchar_r
ANSI_SYNOPSIS
#include <stdio.h>
int putchar(int <[ch]>);
int _putchar_r(void *<[reent]>, int <[ch]>);
TRAD_SYNOPSIS
#include <stdio.h>
int putchar(<[ch]>)
int <[ch]>;
int _putchar_r(<[reent]>, <[ch]>)
char *<[reent]>;
int <[ch]>;
DESCRIPTION
<<putchar>> is a macro, defined in <<stdio.h>>. <<putchar>>
writes its argument to the standard output stream,
after converting it from an <<int>> to an <<unsigned char>>.
The alternate function <<_putchar_r>> is a reentrant version. The
extra argument <[reent]> is a pointer to a reentrancy structure.
RETURNS
If successful, <<putchar>> returns its argument <[ch]>. If an error
intervenes, the result is <<EOF>>. You can use `<<ferror(stdin)>>' to
query for errors.
PORTABILITY
ANSI C requires <<putchar>>; it suggests, but does not require, that
<<putchar>> be implemented as a macro.
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
*/
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "%W% (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
/*
* A subroutine version of the macro putchar
*/
#include <stdio.h>
#undef putchar
int
_putchar_r (ptr, c)
struct _reent *ptr;
int c;
{
return __sputc (c, _stdout_r (ptr));
}
#ifndef _REENT_ONLY
int
putchar (c)
int c;
{
/* CHECK_INIT is (eventually) called by __swbuf. */
_putchar_r (_REENT, c);
}
#endif
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