<html lang="en"> <head> <title>FPUTC - 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="FPUT.html#FPUT" title="FPUT"> <link rel="next" href="FRACTION.html#FRACTION" title="FRACTION"> <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="FPUTC"></a> <p> Next: <a rel="next" accesskey="n" href="FRACTION.html#FRACTION">FRACTION</a>, Previous: <a rel="previous" accesskey="p" href="FPUT.html#FPUT">FPUT</a>, Up: <a rel="up" accesskey="u" href="Intrinsic-Procedures.html#Intrinsic-Procedures">Intrinsic Procedures</a> <hr> </div> <h3 class="section">8.87 <code>FPUTC</code> — Write a single character in stream mode</h3> <p><a name="index-FPUTC-622"></a><a name="index-write-character_002c-stream-mode-623"></a><a name="index-stream-mode_002c-write-character-624"></a><a name="index-file-operation_002c-write-character-625"></a> <dl> <dt><em>Description</em>:<dd>Write 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 FPUTC(UNIT, C [, STATUS])</code> <br></td></tr><tr align="left"><td valign="top" width="80%"><code>STATUS = FPUTC(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_fputc CHARACTER(len=10) :: str = "gfortran" INTEGER :: fd = 42, i OPEN(UNIT = fd, FILE = "out", ACTION = "WRITE", STATUS="NEW") DO i = 1, len_trim(str) CALL fputc(fd, str(i:i)) END DO CLOSE(fd) END PROGRAM </pre> <br><dt><em>See also</em>:<dd><a href="FPUT.html#FPUT">FPUT</a>, <a href="FGET.html#FGET">FGET</a>, <a href="FGETC.html#FGETC">FGETC</a> </dl> </body></html>