| 0,0 → 1,97 |
|---|
| /* |
| * 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(struct _reent *<[reent]>, int <[ch]>); |
| |
| TRAD_SYNOPSIS |
| #include <stdio.h> |
| int putchar(<[ch]>) |
| int <[ch]>; |
| |
| int _putchar_r(<[reent]>, <[ch]>) |
| struct _reent *<[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 <_ansi.h> |
| #include <reent.h> |
| #include <stdio.h> |
| #include "local.h" |
| |
| #undef putchar |
| |
| int |
| _DEFUN(_putchar_r, (ptr, c), |
| struct _reent *ptr _AND |
| int c) |
| { |
| _REENT_SMALL_CHECK_INIT (ptr); |
| return _putc_r (ptr, c, _stdout_r (ptr)); |
| } |
| |
| #ifndef _REENT_ONLY |
| |
| int |
| _DEFUN(putchar, (c), |
| int c) |
| { |
| _REENT_SMALL_CHECK_INIT (_REENT); |
| return _putc_r (_REENT, c, _stdout_r (_REENT)); |
| } |
| |
| #endif |