<html lang="en">
<head>
<title>_gfortran_set_fpe - 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="Non_002dFortran-Main-Program.html#Non_002dFortran-Main-Program" title="Non-Fortran Main Program">
<link rel="prev" href="_005fgfortran_005fset_005fmax_005fsubrecord_005flength.html#g_t_005fgfortran_005fset_005fmax_005fsubrecord_005flength" title="_gfortran_set_max_subrecord_length">
<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="_gfortran_set_fpe"></a>
<a name="g_t_005fgfortran_005fset_005ffpe"></a>
<p>
Previous: <a rel="previous" accesskey="p" href="_005fgfortran_005fset_005fmax_005fsubrecord_005flength.html#g_t_005fgfortran_005fset_005fmax_005fsubrecord_005flength">_gfortran_set_max_subrecord_length</a>,
Up: <a rel="up" accesskey="u" href="Non_002dFortran-Main-Program.html#Non_002dFortran-Main-Program">Non-Fortran Main Program</a>
<hr>
</div>
<h4 class="subsection">7.3.5 <code>_gfortran_set_fpe</code> — Set when a Floating Point Exception should be raised</h4>
<p><a name="index-g_t_005fgfortran_005fset_005ffpe-341"></a><a name="index-libgfortran-initialization_002c-set_005ffpe-342"></a>
<dl>
<dt><em>Description</em>:<dd><code>_gfortran_set_fpe</code> sets the IEEE exceptions for which a
Floating Point Exception (FPE) should be raised. On most systems,
this will result in a SIGFPE signal being sent and the program
being interrupted.
<br><dt><em>Syntax</em>:<dd><code>void _gfortran_set_fpe (int val)</code>
<br><dt><em>Arguments</em>:<dd>
<p><table summary=""><tr align="left"><td valign="top" width="15%"><var>option</var>[0] </td><td valign="top" width="70%">IEEE exceptions. Possible values are
(bitwise or-ed) zero (0, default) no trapping,
<code>GFC_FPE_INVALID</code> (1), <code>GFC_FPE_DENORMAL</code> (2),
<code>GFC_FPE_ZERO</code> (4), <code>GFC_FPE_OVERFLOW</code> (8),
<code>GFC_FPE_UNDERFLOW</code> (16), and <code>GFC_FPE_PRECISION</code> (32).
<br></td></tr></table>
<br><dt><em>Example</em>:<dd>
<pre class="smallexample"> int main (int argc, char *argv[])
{
/* Initialize libgfortran. */
_gfortran_set_args (argc, argv);
/* FPE for invalid operations such as SQRT(-1.0). */
_gfortran_set_fpe (1);
return 0;
}
</pre>
</dl>
</body></html>
