<html lang="en">
<head>
<title>FGETC - The GNU Fortran Compiler</title>
<meta http-equiv="Content-Type" content="text/html">
<meta name="description" content="The GNU Fortran Compiler">
<meta name="generator" content="makeinfo 4.13">
<link title="Top" rel="start" href="index.html#Top">
<link rel="up" href="Intrinsic-Procedures.html#Intrinsic-Procedures" title="Intrinsic Procedures">
<link rel="prev" href="FGET.html#FGET" title="FGET">
<link rel="next" href="FLOOR.html#FLOOR" title="FLOOR">
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
<!--
Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
Permission is granted to copy, distribute and/or modify this document
under the terms of the GNU Free Documentation License, Version 1.3 or
any later version published by the Free Software Foundation; with the
Invariant Sections being ``Funding Free Software'', the Front-Cover
Texts being (a) (see below), and with the Back-Cover Texts being (b)
(see below). A copy of the license is included in the section entitled
``GNU Free Documentation License''.
(a) The FSF's Front-Cover Text is:
A GNU Manual
(b) The FSF's Back-Cover Text is:
You have freedom to copy and modify this GNU Manual, like GNU
software. Copies published by the Free Software Foundation raise
funds for GNU development.-->
<meta http-equiv="Content-Style-Type" content="text/css">
<style type="text/css"><!--
pre.display { font-family:inherit }
pre.format { font-family:inherit }
pre.smalldisplay { font-family:inherit; font-size:smaller }
pre.smallformat { font-family:inherit; font-size:smaller }
pre.smallexample { font-size:smaller }
pre.smalllisp { font-size:smaller }
span.sc { font-variant:small-caps }
span.roman { font-family:serif; font-weight:normal; }
span.sansserif { font-family:sans-serif; font-weight:normal; }
--></style>
</head>
<body>
<div class="node">
<a name="FGETC"></a>
<p>
Next: <a rel="next" accesskey="n" href="FLOOR.html#FLOOR">FLOOR</a>,
Previous: <a rel="previous" accesskey="p" href="FGET.html#FGET">FGET</a>,
Up: <a rel="up" accesskey="u" href="Intrinsic-Procedures.html#Intrinsic-Procedures">Intrinsic Procedures</a>
<hr>
</div>
<h3 class="section">8.82 <code>FGETC</code> — Read a single character in stream mode</h3>
<p><a name="index-FGETC-607"></a><a name="index-read-character_002c-stream-mode-608"></a><a name="index-stream-mode_002c-read-character-609"></a><a name="index-file-operation_002c-read-character-610"></a>
<dl>
<dt><em>Description</em>:<dd>Read a single character in stream mode by bypassing normal formatted output.
Stream I/O should not be mixed with normal record-oriented (formatted or
unformatted) I/O on the same unit; the results are unpredictable.
<p>This intrinsic is provided in both subroutine and function forms; however,
only one form can be used in any given program unit.
<p>Note that the <code>FGET</code> intrinsic is provided for backwards compatibility
with <samp><span class="command">g77</span></samp>. GNU Fortran provides the Fortran 2003 Stream facility.
Programmers should consider the use of new stream IO feature in new code
for future portability. See also <a href="Fortran-2003-status.html#Fortran-2003-status">Fortran 2003 status</a>.
<br><dt><em>Standard</em>:<dd>GNU extension
<br><dt><em>Class</em>:<dd>Subroutine, function
<br><dt><em>Syntax</em>:<dd>
<p><table summary=""><tr align="left"><td valign="top" width="80%"><code>CALL FGETC(UNIT, C [, STATUS])</code>
<br></td></tr><tr align="left"><td valign="top" width="80%"><code>STATUS = FGETC(UNIT, C)</code>
<br></td></tr></table>
<br><dt><em>Arguments</em>:<dd>
<p><table summary=""><tr align="left"><td valign="top" width="15%"><var>UNIT</var> </td><td valign="top" width="70%">The type shall be <code>INTEGER</code>.
<br></td></tr><tr align="left"><td valign="top" width="15%"><var>C</var> </td><td valign="top" width="70%">The type shall be <code>CHARACTER</code> and of default
kind.
<br></td></tr><tr align="left"><td valign="top" width="15%"><var>STATUS</var> </td><td valign="top" width="70%">(Optional) status flag of type <code>INTEGER</code>.
Returns 0 on success, -1 on end-of-file and a system specific positive
error code otherwise.
<br></td></tr></table>
<br><dt><em>Example</em>:<dd>
<pre class="smallexample"> PROGRAM test_fgetc
INTEGER :: fd = 42, status
CHARACTER :: c
OPEN(UNIT=fd, FILE="/etc/passwd", ACTION="READ", STATUS = "OLD")
DO
CALL fgetc(fd, c, status)
IF (status /= 0) EXIT
call fput(c)
END DO
CLOSE(UNIT=fd)
END PROGRAM
</pre>
<br><dt><em>See also</em>:<dd><a href="FGET.html#FGET">FGET</a>, <a href="FPUT.html#FPUT">FPUT</a>, <a href="FPUTC.html#FPUTC">FPUTC</a>
</dl>
</body></html>
