3
<title>Calling FFTW from Fortran - FFTW 3.1.2</title>
4
<meta http-equiv="Content-Type" content="text/html">
5
<meta name="description" content="FFTW 3.1.2">
6
<meta name="generator" content="makeinfo 4.8">
7
<link title="Top" rel="start" href="index.html#Top">
8
<link rel="prev" href="Parallel-FFTW.html#Parallel-FFTW" title="Parallel FFTW">
9
<link rel="next" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2" title="Upgrading from FFTW version 2">
10
<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage">
12
This manual is for FFTW
13
(version 3.1.2, 23 June 2006).
15
Copyright (C) 2003 Matteo Frigo.
17
Copyright (C) 2003 Massachusetts Institute of Technology.
19
Permission is granted to make and distribute verbatim copies of
20
this manual provided the copyright notice and this permission
21
notice are preserved on all copies.
23
Permission is granted to copy and distribute modified versions of
24
this manual under the conditions for verbatim copying, provided
25
that the entire resulting derived work is distributed under the
26
terms of a permission notice identical to this one.
28
Permission is granted to copy and distribute translations of this
29
manual into another language, under the above conditions for
30
modified versions, except that this permission notice may be
31
stated in a translation approved by the Free Software Foundation.
33
<meta http-equiv="Content-Style-Type" content="text/css">
34
<style type="text/css"><!--
35
pre.display { font-family:inherit }
36
pre.format { font-family:inherit }
37
pre.smalldisplay { font-family:inherit; font-size:smaller }
38
pre.smallformat { font-family:inherit; font-size:smaller }
39
pre.smallexample { font-size:smaller }
40
pre.smalllisp { font-size:smaller }
41
span.sc { font-variant:small-caps }
42
span.roman { font-family:serif; font-weight:normal; }
43
span.sansserif { font-family:sans-serif; font-weight:normal; }
49
<a name="Calling-FFTW-from-Fortran"></a>
50
Next: <a rel="next" accesskey="n" href="Upgrading-from-FFTW-version-2.html#Upgrading-from-FFTW-version-2">Upgrading from FFTW version 2</a>,
51
Previous: <a rel="previous" accesskey="p" href="Parallel-FFTW.html#Parallel-FFTW">Parallel FFTW</a>,
52
Up: <a rel="up" accesskey="u" href="index.html#Top">Top</a>
56
<h2 class="chapter">6 Calling FFTW from Fortran</h2>
58
<p><a name="index-Fortran-interface-319"></a>
59
This chapter describes the Fortran-callable interface to FFTW, which
60
differs from the C interface only in the prefix (`<samp><span class="samp">dfftw_</span></samp>' instead
61
of `<samp><span class="samp">fftw_</span></samp>'), and a few other minor details. The Fortran interface
62
is included in the FFTW libraries by default, unless a Fortran compiler
63
isn't found on your system or <code>--disable-fortran</code> is included in
64
the <code>configure</code> flags. We assume here that the reader is already
65
familiar with the usage of FFTW in C, as described elsewhere in this
69
<li><a accesskey="1" href="Fortran_002dinterface-routines.html#Fortran_002dinterface-routines">Fortran-interface routines</a>
70
<li><a accesskey="2" href="FFTW-Constants-in-Fortran.html#FFTW-Constants-in-Fortran">FFTW Constants in Fortran</a>
71
<li><a accesskey="3" href="Fortran-Examples.html#Fortran-Examples">Fortran Examples</a>
72
<li><a accesskey="4" href="Wisdom-of-Fortran_003f.html#Wisdom-of-Fortran_003f">Wisdom of Fortran?</a>