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newlib/newlib/libc/stdio/getchar.c

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import newlib-2000-02-17 snapshot
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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,
Use remove-advertising-clause script to edit BSD licenses This edits licenses held by Berkeley and NetBSD, both of which have removed the advertising requirement from their licenses. Signed-off-by: Keith Packard <keithp@keithp.com>
2020-01-28 19:54:53 +01:00
* and/or other materials related to such
import newlib-2000-02-17 snapshot
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* 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
<<getchar>>---read a character (macro)
INDEX
getchar
INDEX
_getchar_r
stdio: remove TRAD_SYNOPSIS Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-30 09:05:02 +01:00
SYNOPSIS
import newlib-2000-02-17 snapshot
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#include <stdio.h>
int getchar(void);
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
int _getchar_r(struct _reent *<[reent]>);
import newlib-2000-02-17 snapshot
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DESCRIPTION
<<getchar>> is a macro, defined in <<stdio.h>>. You can use <<getchar>>
to get the next single character from the standard input stream.
As a side effect, <<getchar>> advances the standard input's
current position indicator.
The alternate function <<_getchar_r>> is a reentrant version. The
extra argument <[reent]> is a pointer to a reentrancy structure.
RETURNS
The next character (read as an <<unsigned char>>, and cast to
<<int>>), unless there is no more data, or the host system reports a
read error; in either of these situations, <<getchar>> returns <<EOF>>.
You can distinguish the two situations that cause an <<EOF>> result by
using `<<ferror(stdin)>>' and `<<feof(stdin)>>'.
PORTABILITY
ANSI C requires <<getchar>>; it suggests, but does not require, that
<<getchar>> 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 getchar.
*/
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
#include <_ansi.h>
import newlib-2000-02-17 snapshot
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#include <reent.h>
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
#include <stdio.h>
* implement a new `struct _reent' that is significantly smaller. use this if _REENT_SMALL is defined in config.h. define this for xstormy16.
2002-02-03 10:24:18 +01:00
#include "local.h"
import newlib-2000-02-17 snapshot
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#undef getchar
int
ansification: remove _DEFUN Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-04 04:43:30 +01:00
_getchar_r (struct _reent *reent)
import newlib-2000-02-17 snapshot
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{
2006-06-14 Jeff Johnston <jjohnstn@redhat.com> * libc/include/stdio.h: Add new reentrant I/O prototypes for read/write functions. Change getc/putc macros to have reentrant underlying macros/functions. This includes __sgetc_raw_r, __sgetc_r, and __sputc_r. * libc/stdio/fgetc.c: Fix and/or add reentrant version to call new reentrant I/O functions/macros for reading/writing. * libc/stdio/fgets.c: Ditto. * libc/stdio/fputc.c: Ditto. * libc/stdio/fputs.c: Ditto. * libc/stdio/fread.c: Ditto. * libc/stdio/fseek.c: Ditto. * libc/stdio64/fseeko64.c: Ditto. * libc/stdio/fwrite.c: Ditto. * libc/stdio/getc.c: Ditto. * libc/stdio/getc_u.c: Ditto. * libc/stdio/getchar.c: Ditto. * libc/stdio/getchar_u.c: Ditto. * libc/stdio/putc.c: Ditto. * libc/stdio/putc_u.c: Ditto. * libc/stdio/putchar.c: Ditto. * libc/stdio/puts.c: Ditto. * libc/stdio/vfprintf.c: Ditto. * libc/stdio/vfscanf.c: Ditto. * libc/stdio/fvwrite.c: Change __sfvwrite into reentrant __sfvwrite_r. Change all previous callers of __sfvwrite. Set errno to EBADF and set error flag on if attempt is made to write to file that does not allow writing. * libc/stdio/fvwrite.h: Fix new reentrant prototypes. * libc/stdio/local.h: Ditto. * libc/stdio/refill.c: Turn __srefill into reentrant __srefill_r. Set errno to EBADF and the error flag on if attempt is made to read unreadable file. Change all previous callers of __srefill. * libc/stdio/rget.c * libc/stdio/wbuf.c: Turn __swbuf into reentrant __swbuf_r. Change all previous callers of __swbuf. * libc/sys/linux/machine/i386/huge_val.h: Ifdef out file contents since huge value macros are already defined correctly for i386 by <math.h>.
2006-06-14 22:49:11 +02:00
_REENT_SMALL_CHECK_INIT (reent);
return _getc_r (reent, _stdin_r (reent));
import newlib-2000-02-17 snapshot
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}
#ifndef _REENT_ONLY
int
ansification: remove _DEFUN_VOID Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-12-04 04:00:43 +01:00
getchar (void)
import newlib-2000-02-17 snapshot
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{
2013-04-29 Sebastian Huber <sebastian.huber@embedded-brains.de> * libc/stdio/local.h (CHECK_INIT): Evaluate argument only once. (CHECK_STD_INIT): Likewise. * libc/stdio/fgetc.c (fgetc): Use local variable for _REENT. * libc/stdio/fgetwc.c (fwgetc): Likewise. * libc/stdio/fgetws.c (fgetws): Likewise. * libc/stdio/fputc.c (fputc): Likewise. * libc/stdio/fputwc.c (fputwc): Likewise. * libc/stdio/fputws.c (fputws): Likewise. * libc/stdio/getc.c (getc): Likewise. * libc/stdio/getchar.c (_getchar_r): Likewise. * libc/stdio/putc.c (putc): Likewise. * libc/stdio/putchar.c (putchar): Likewise. * libc/stdio/scanf.c (scanf): Likewise. * libc/stdio/setvbuf.c (setvbuf): Likewise. * libc/stdio/ungetwc.c (ungetwc): Likewise. * libc/stdio/vfscanf.c (VFSCANF): Likewise. * libc/stdio/vfwscanf.c (VFWSCANF): Likewise. * libc/stdio/viprintf.c (viprintf): Likewise. * libc/stdio/viscanf.c (viscanf): Likewise. * libc/stdio/vprintf.c (vprintf): Likewise. * libc/stdio/vscanf.c (vscanf): Likewise. * libc/stdio/vwprintf.c (vwprintf): Likewise. * libc/stdio/vwscanf.c (vwscanf): Likewise. * libc/stdio/wscanf.c (wscanf): Likewise. * libc/stdlib/ecvtbuf.c (fcvtbuf): Likewise. (fcvtbuf): Likewise. (ecvtbuf): Likewise. (ecvtbuf): Likewise. * libc/stdlib/mblen.c (mblen): Likewise. * libc/stdlib/mbrlen.c (mbrlen): Likewise. * libc/stdlib/mbrtowc.c (mbrtowc): Likewise. * libc/stdlib/mbtowc.c (mbtowc): Likewise. * libc/stdlib/rand.c (srand): Likewise. (rand): Likewise. * libc/stdlib/wcrtomb.c (wcrtomb): Likewise. * libc/stdlib/wctob.c (wctob): Likewise. * libc/stdlib/wctomb.c (wctomb): Likewise. * libc/string/strtok.c (strtok): Likewise. * libc/time/asctime.c (asctime): Likewise. * libc/time/gmtime.c (gmtime): Likewise. * libc/time/lcltime.c (lcltime): Likewise.
2013-04-29 23:06:23 +02:00
struct _reent *reent = _REENT;
2006-06-14 Jeff Johnston <jjohnstn@redhat.com> * libc/include/stdio.h: Add new reentrant I/O prototypes for read/write functions. Change getc/putc macros to have reentrant underlying macros/functions. This includes __sgetc_raw_r, __sgetc_r, and __sputc_r. * libc/stdio/fgetc.c: Fix and/or add reentrant version to call new reentrant I/O functions/macros for reading/writing. * libc/stdio/fgets.c: Ditto. * libc/stdio/fputc.c: Ditto. * libc/stdio/fputs.c: Ditto. * libc/stdio/fread.c: Ditto. * libc/stdio/fseek.c: Ditto. * libc/stdio64/fseeko64.c: Ditto. * libc/stdio/fwrite.c: Ditto. * libc/stdio/getc.c: Ditto. * libc/stdio/getc_u.c: Ditto. * libc/stdio/getchar.c: Ditto. * libc/stdio/getchar_u.c: Ditto. * libc/stdio/putc.c: Ditto. * libc/stdio/putc_u.c: Ditto. * libc/stdio/putchar.c: Ditto. * libc/stdio/puts.c: Ditto. * libc/stdio/vfprintf.c: Ditto. * libc/stdio/vfscanf.c: Ditto. * libc/stdio/fvwrite.c: Change __sfvwrite into reentrant __sfvwrite_r. Change all previous callers of __sfvwrite. Set errno to EBADF and set error flag on if attempt is made to write to file that does not allow writing. * libc/stdio/fvwrite.h: Fix new reentrant prototypes. * libc/stdio/local.h: Ditto. * libc/stdio/refill.c: Turn __srefill into reentrant __srefill_r. Set errno to EBADF and the error flag on if attempt is made to read unreadable file. Change all previous callers of __srefill. * libc/stdio/rget.c * libc/stdio/wbuf.c: Turn __swbuf into reentrant __swbuf_r. Change all previous callers of __swbuf. * libc/sys/linux/machine/i386/huge_val.h: Ifdef out file contents since huge value macros are already defined correctly for i386 by <math.h>.
2006-06-14 22:49:11 +02:00
/* CHECK_INIT is called (eventually) by __srefill_r. */
2013-04-29 Sebastian Huber <sebastian.huber@embedded-brains.de> * libc/stdio/local.h (CHECK_INIT): Evaluate argument only once. (CHECK_STD_INIT): Likewise. * libc/stdio/fgetc.c (fgetc): Use local variable for _REENT. * libc/stdio/fgetwc.c (fwgetc): Likewise. * libc/stdio/fgetws.c (fgetws): Likewise. * libc/stdio/fputc.c (fputc): Likewise. * libc/stdio/fputwc.c (fputwc): Likewise. * libc/stdio/fputws.c (fputws): Likewise. * libc/stdio/getc.c (getc): Likewise. * libc/stdio/getchar.c (_getchar_r): Likewise. * libc/stdio/putc.c (putc): Likewise. * libc/stdio/putchar.c (putchar): Likewise. * libc/stdio/scanf.c (scanf): Likewise. * libc/stdio/setvbuf.c (setvbuf): Likewise. * libc/stdio/ungetwc.c (ungetwc): Likewise. * libc/stdio/vfscanf.c (VFSCANF): Likewise. * libc/stdio/vfwscanf.c (VFWSCANF): Likewise. * libc/stdio/viprintf.c (viprintf): Likewise. * libc/stdio/viscanf.c (viscanf): Likewise. * libc/stdio/vprintf.c (vprintf): Likewise. * libc/stdio/vscanf.c (vscanf): Likewise. * libc/stdio/vwprintf.c (vwprintf): Likewise. * libc/stdio/vwscanf.c (vwscanf): Likewise. * libc/stdio/wscanf.c (wscanf): Likewise. * libc/stdlib/ecvtbuf.c (fcvtbuf): Likewise. (fcvtbuf): Likewise. (ecvtbuf): Likewise. (ecvtbuf): Likewise. * libc/stdlib/mblen.c (mblen): Likewise. * libc/stdlib/mbrlen.c (mbrlen): Likewise. * libc/stdlib/mbrtowc.c (mbrtowc): Likewise. * libc/stdlib/mbtowc.c (mbtowc): Likewise. * libc/stdlib/rand.c (srand): Likewise. (rand): Likewise. * libc/stdlib/wcrtomb.c (wcrtomb): Likewise. * libc/stdlib/wctob.c (wctob): Likewise. * libc/stdlib/wctomb.c (wctomb): Likewise. * libc/string/strtok.c (strtok): Likewise. * libc/time/asctime.c (asctime): Likewise. * libc/time/gmtime.c (gmtime): Likewise. * libc/time/lcltime.c (lcltime): Likewise.
2013-04-29 23:06:23 +02:00
_REENT_SMALL_CHECK_INIT (reent);
return _getc_r (reent, _stdin_r (reent));
import newlib-2000-02-17 snapshot
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}
#endif