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Tidy up for ROLI
author Geogaddi\David <d.m.ronan@qmul.ac.uk>
date Tue, 17 May 2016 18:50:19 +0100
parents 636c989477e7
children
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--- a/Lib/fftw-3.2.1/doc/html/.svn/text-base/Wisdom-of-Fortran_003f.html.svn-base	Wed May 04 11:02:59 2016 +0100
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-<title>Wisdom of Fortran? - FFTW 3.2.1</title>
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-<!--
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-<a name="Wisdom-of-Fortran%3f"></a>
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-Previous:&nbsp;<a rel="previous" accesskey="p" href="Fortran-Examples.html#Fortran-Examples">Fortran Examples</a>,
-Up:&nbsp;<a rel="up" accesskey="u" href="Calling-FFTW-from-Fortran.html#Calling-FFTW-from-Fortran">Calling FFTW from Fortran</a>
-<hr>
-</div>
-
-<h3 class="section">7.5 Wisdom of Fortran?</h3>
-
-<p>In this section, we discuss how one can import/export FFTW wisdom
-(saved plans) to/from a Fortran program; we assume that the reader is
-already familiar with wisdom, as described in <a href="Words-of-Wisdom_002dSaving-Plans.html#Words-of-Wisdom_002dSaving-Plans">Words of Wisdom-Saving Plans</a>.
-
-   <p><a name="index-portability-352"></a>The basic problem is that is difficult to (portably) pass files and
-strings between Fortran and C, so we cannot provide a direct Fortran
-equivalent to the <code>fftw_export_wisdom_to_file</code>, etcetera,
-functions.  Fortran interfaces <em>are</em> provided for the functions
-that do not take file/string arguments, however:
-<code>dfftw_import_system_wisdom</code>, <code>dfftw_import_wisdom</code>,
-<code>dfftw_export_wisdom</code>, and <code>dfftw_forget_wisdom</code>. 
-<a name="index-dfftw_005fimport_005fsystem_005fwisdom-353"></a><a name="index-dfftw_005fimport_005fwisdom-354"></a><a name="index-dfftw_005fexport_005fwisdom-355"></a><a name="index-dfftw_005fforget_005fwisdom-356"></a>
-So, for example, to import the system-wide wisdom, you would do:
-
-<pre class="example">             integer isuccess
-             call dfftw_import_system_wisdom(isuccess)
-</pre>
-   <p>As usual, the C return value is turned into a first parameter;
-<code>isuccess</code> is non-zero on success and zero on failure (e.g. if
-there is no system wisdom installed).
-
-   <p>If you want to import/export wisdom from/to an arbitrary file or
-elsewhere, you can employ the generic <code>dfftw_import_wisdom</code> and
-<code>dfftw_export_wisdom</code> functions, for which you must supply a
-subroutine to read/write one character at a time.  The FFTW package
-contains an example file <code>doc/f77_wisdom.f</code> demonstrating how to
-implement <code>import_wisdom_from_file</code> and
-<code>export_wisdom_to_file</code> subroutines in this way.  (These routines
-cannot be compiled into the FFTW library itself, lest all FFTW-using
-programs be required to link with the Fortran I/O library.)
-
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