mirror of
https://github.com/tildearrow/furnace.git
synced 2024-11-24 05:25:12 +00:00
120 lines
5.6 KiB
HTML
120 lines
5.6 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<!-- This manual is for FFTW
|
|
(version 3.3.10, 10 December 2020).
|
|
|
|
Copyright (C) 2003 Matteo Frigo.
|
|
|
|
Copyright (C) 2003 Massachusetts Institute of Technology.
|
|
|
|
Permission is granted to make and distribute verbatim copies of this
|
|
manual provided the copyright notice and this permission notice are
|
|
preserved on all copies.
|
|
|
|
Permission is granted to copy and distribute modified versions of this
|
|
manual under the conditions for verbatim copying, provided that the
|
|
entire resulting derived work is distributed under the terms of a
|
|
permission notice identical to this one.
|
|
|
|
Permission is granted to copy and distribute translations of this manual
|
|
into another language, under the above conditions for modified versions,
|
|
except that this permission notice may be stated in a translation
|
|
approved by the Free Software Foundation. -->
|
|
<!-- Created by GNU Texinfo 6.7, http://www.gnu.org/software/texinfo/ -->
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<title>Wisdom Export (FFTW 3.3.10)</title>
|
|
|
|
<meta name="description" content="Wisdom Export (FFTW 3.3.10)">
|
|
<meta name="keywords" content="Wisdom Export (FFTW 3.3.10)">
|
|
<meta name="resource-type" content="document">
|
|
<meta name="distribution" content="global">
|
|
<meta name="Generator" content="makeinfo">
|
|
<link href="index.html" rel="start" title="Top">
|
|
<link href="Concept-Index.html" rel="index" title="Concept Index">
|
|
<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
|
|
<link href="Wisdom.html" rel="up" title="Wisdom">
|
|
<link href="Wisdom-Import.html" rel="next" title="Wisdom Import">
|
|
<link href="Wisdom.html" rel="prev" title="Wisdom">
|
|
<style type="text/css">
|
|
<!--
|
|
a.summary-letter {text-decoration: none}
|
|
blockquote.indentedblock {margin-right: 0em}
|
|
div.display {margin-left: 3.2em}
|
|
div.example {margin-left: 3.2em}
|
|
div.lisp {margin-left: 3.2em}
|
|
kbd {font-style: oblique}
|
|
pre.display {font-family: inherit}
|
|
pre.format {font-family: inherit}
|
|
pre.menu-comment {font-family: serif}
|
|
pre.menu-preformatted {font-family: serif}
|
|
span.nolinebreak {white-space: nowrap}
|
|
span.roman {font-family: initial; font-weight: normal}
|
|
span.sansserif {font-family: sans-serif; font-weight: normal}
|
|
ul.no-bullet {list-style: none}
|
|
-->
|
|
</style>
|
|
|
|
|
|
</head>
|
|
|
|
<body lang="en">
|
|
<span id="Wisdom-Export"></span><div class="header">
|
|
<p>
|
|
Next: <a href="Wisdom-Import.html" accesskey="n" rel="next">Wisdom Import</a>, Previous: <a href="Wisdom.html" accesskey="p" rel="prev">Wisdom</a>, Up: <a href="Wisdom.html" accesskey="u" rel="up">Wisdom</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
<hr>
|
|
<span id="Wisdom-Export-1"></span><h4 class="subsection">4.7.1 Wisdom Export</h4>
|
|
|
|
<div class="example">
|
|
<pre class="example">int fftw_export_wisdom_to_filename(const char *filename);
|
|
void fftw_export_wisdom_to_file(FILE *output_file);
|
|
char *fftw_export_wisdom_to_string(void);
|
|
void fftw_export_wisdom(void (*write_char)(char c, void *), void *data);
|
|
</pre></div>
|
|
<span id="index-fftw_005fexport_005fwisdom"></span>
|
|
<span id="index-fftw_005fexport_005fwisdom_005fto_005ffilename-1"></span>
|
|
<span id="index-fftw_005fexport_005fwisdom_005fto_005ffile"></span>
|
|
<span id="index-fftw_005fexport_005fwisdom_005fto_005fstring"></span>
|
|
|
|
<p>These functions allow you to export all currently accumulated wisdom
|
|
in a form from which it can be later imported and restored, even
|
|
during a separate run of the program. (See <a href="Words-of-Wisdom_002dSaving-Plans.html">Words of Wisdom-Saving Plans</a>.) The current store of wisdom is not affected by calling any
|
|
of these routines.
|
|
</p>
|
|
<p><code>fftw_export_wisdom</code> exports the wisdom to any output
|
|
medium, as specified by the callback function
|
|
<code>write_char</code>. <code>write_char</code> is a <code>putc</code>-like function that
|
|
writes the character <code>c</code> to some output; its second parameter is
|
|
the <code>data</code> pointer passed to <code>fftw_export_wisdom</code>. For
|
|
convenience, the following three “wrapper” routines are provided:
|
|
</p>
|
|
<p><code>fftw_export_wisdom_to_filename</code> writes wisdom to a file named
|
|
<code>filename</code> (which is created or overwritten), returning <code>1</code>
|
|
on success and <code>0</code> on failure. A lower-level function, which
|
|
requires you to open and close the file yourself (e.g. if you want to
|
|
write wisdom to a portion of a larger file) is
|
|
<code>fftw_export_wisdom_to_file</code>. This writes the wisdom to the
|
|
current position in <code>output_file</code>, which should be open with
|
|
write permission; upon exit, the file remains open and is positioned
|
|
at the end of the wisdom data.
|
|
</p>
|
|
<p><code>fftw_export_wisdom_to_string</code> returns a pointer to a
|
|
<code>NULL</code>-terminated string holding the wisdom data. This string is
|
|
dynamically allocated, and it is the responsibility of the caller to
|
|
deallocate it with <code>free</code> when it is no longer needed.
|
|
</p>
|
|
<p>All of these routines export the wisdom in the same format, which we
|
|
will not document here except to say that it is LISP-like ASCII text
|
|
that is insensitive to white space.
|
|
</p>
|
|
<hr>
|
|
<div class="header">
|
|
<p>
|
|
Next: <a href="Wisdom-Import.html" accesskey="n" rel="next">Wisdom Import</a>, Previous: <a href="Wisdom.html" accesskey="p" rel="prev">Wisdom</a>, Up: <a href="Wisdom.html" accesskey="u" rel="up">Wisdom</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html" title="Index" rel="index">Index</a>]</p>
|
|
</div>
|
|
|
|
|
|
|
|
</body>
|
|
</html>
|