text: /*
   * 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
  <<getc>>---read a character (macro)
  
  INDEX
  	getc
  INDEX
  	_getc_r
  
  ANSI_SYNOPSIS
  	#include <stdio.h>
  	int getc(FILE *<[fp]>);
  
  	#include <stdio.h>
  	int _getc_r(struct _reent *<[ptr]>, FILE *<[fp]>);
  
  TRAD_SYNOPSIS
  	#include <stdio.h>
  	int getc(<[fp]>)
  	FILE *<[fp]>;
  
  	#include <stdio.h>
  	int _getc_r(<[ptr]>, <[fp]>)
  	struct _reent *<[ptr]>;
  	FILE *<[fp]>;
  
  DESCRIPTION
  <<getc>> is a macro, defined in <<stdio.h>>.  You can use <<getc>>
  to get the next single character from the file or stream
  identified by <[fp]>.  As a side effect, <<getc>> advances the file's
  current position indicator.
  
  For a subroutine version of this macro, see <<fgetc>>.
  
  The <<_getc_r>> function is simply the reentrant version of <<getc>>
  which passes an additional reentrancy structure pointer argument: <[ptr]>.
  
  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, <<getc>> returns <<EOF>>.
  
  You can distinguish the two situations that cause an <<EOF>> result by
  using the <<ferror>> and <<feof>> functions.
  
  PORTABILITY
  ANSI C requires <<getc>>; it suggests, but does not require, that
  <<getc>> be implemented as a macro.  The standard explicitly permits
  macro implementations of <<getc>> to use the argument more than once;
  therefore, in a portable program, you should not use an expression
  with side effects as the <<getc>> argument.
  
  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 */
  
  #include <_ansi.h>
  #include <stdio.h>
  #include "local.h"
  
  /*
   * A subroutine version of the macro getc.
   */
  
  #undef getc
  
  int
  _DEFUN(_getc_r, (ptr, fp),
         struct _reent *ptr _AND
         register FILE *fp)
  {
    int result;
    CHECK_INIT (ptr, fp);
    _newlib_flockfile_start (fp);
    result = __sgetc_r (ptr, fp);
    _newlib_flockfile_end (fp);
    return result;
  }
  
  #ifndef _REENT_ONLY
  
  int
  _DEFUN(getc, (fp),
         register FILE *fp)
  {
    int result;
    CHECK_INIT (_REENT, fp);
    _newlib_flockfile_start (fp);
    result = __sgetc_r (_REENT, fp);
    _newlib_flockfile_end (fp);
    return result;
  }
  
  #endif /* !_REENT_ONLY */
  