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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdio/] [getw.c] - Blame information for rev 158

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1 148 jeremybenn
/*
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 * Copyright (c) 1990 The Regents of the University of California.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms are permitted
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 * provided that the above copyright notice and this paragraph are
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 * duplicated in all such forms and that any documentation,
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 * advertising materials, and other materials related to such
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 * distribution and use acknowledge that the software was developed
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 * by the University of California, Berkeley.  The name of the
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 * University may not be used to endorse or promote products derived
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 * from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 */
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/*
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FUNCTION
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<<getw>>---read a word (int)
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INDEX
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        getw
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ANSI_SYNOPSIS
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        #include <stdio.h>
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        int getw(FILE *<[fp]>);
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TRAD_SYNOPSIS
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        #include <stdio.h>
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        int getw(<[fp]>)
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        FILE *<[fp]>;
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DESCRIPTION
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<<getw>> is a function, defined in <<stdio.h>>.  You can use <<getw>>
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to get the next word from the file or stream identified by <[fp]>.  As
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a side effect, <<getw>> advances the file's current position
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indicator.
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RETURNS
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The next word (read as an <<int>>), unless there is no more
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data or the host system reports a read error; in either of these
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situations, <<getw>> returns <<EOF>>.  Since <<EOF>> is a valid
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<<int>>, you must use <<ferror>> or <<feof>> to distinguish these
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situations.
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PORTABILITY
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<<getw>> is a remnant of K&R C; it is not part of any ISO C Standard.
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<<fread>> should be used instead.  In fact, this implementation of
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<<getw>> is based upon <<fread>>.
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Supporting OS subroutines required: <<fread>>.  */
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "%W% (Berkeley) %G%";
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#endif /* LIBC_SCCS and not lint */
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#include <_ansi.h>
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#include <stdio.h>
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int
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_DEFUN(getw, (fp),
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       register FILE *fp)
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{
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  int result;
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  if (fread ((char*)&result, sizeof (result), 1, fp) != 1)
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    return EOF;
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  return result;
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}

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