Mercurial > hg > sv-dependency-builds
diff src/fftw-3.3.8/doc/html/Calling-FFTW-from-Modern-Fortran.html @ 82:d0c2a83c1364
Add FFTW 3.3.8 source, and a Linux build
| author | Chris Cannam |
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| date | Tue, 19 Nov 2019 14:52:55 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/fftw-3.3.8/doc/html/Calling-FFTW-from-Modern-Fortran.html Tue Nov 19 14:52:55 2019 +0000 @@ -0,0 +1,119 @@ +<!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 3.3.8, 24 May 2018). + +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 6.3, http://www.gnu.org/software/texinfo/ --> +<head> +<title>FFTW 3.3.8: Calling FFTW from Modern Fortran</title> + +<meta name="description" content="FFTW 3.3.8: Calling FFTW from Modern Fortran"> +<meta name="keywords" content="FFTW 3.3.8: Calling FFTW from Modern Fortran"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Concept-Index.html#Concept-Index" rel="index" title="Concept Index"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="index.html#Top" rel="up" title="Top"> +<link href="Overview-of-Fortran-interface.html#Overview-of-Fortran-interface" rel="next" title="Overview of Fortran interface"> +<link href="FFTW-MPI-Fortran-Interface.html#FFTW-MPI-Fortran-Interface" rel="prev" title="FFTW MPI Fortran Interface"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.indentedblock {margin-right: 0em} +blockquote.smallindentedblock {margin-right: 0em; font-size: smaller} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smalllisp {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} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +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"> +<a name="Calling-FFTW-from-Modern-Fortran"></a> +<div class="header"> +<p> +Next: <a href="Calling-FFTW-from-Legacy-Fortran.html#Calling-FFTW-from-Legacy-Fortran" accesskey="n" rel="next">Calling FFTW from Legacy Fortran</a>, Previous: <a href="Distributed_002dmemory-FFTW-with-MPI.html#Distributed_002dmemory-FFTW-with-MPI" accesskey="p" rel="prev">Distributed-memory FFTW with MPI</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Concept-Index.html#Concept-Index" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Calling-FFTW-from-Modern-Fortran-1"></a> +<h2 class="chapter">7 Calling FFTW from Modern Fortran</h2> +<a name="index-Fortran-interface-2"></a> + +<p>Fortran 2003 standardized ways for Fortran code to call C libraries, +and this allows us to support a direct translation of the FFTW C API +into Fortran. Compared to the legacy Fortran 77 interface +(see <a href="Calling-FFTW-from-Legacy-Fortran.html#Calling-FFTW-from-Legacy-Fortran">Calling FFTW from Legacy Fortran</a>), this direct interface +offers many advantages, especially compile-time type-checking and +aligned memory allocation. As of this writing, support for these C +interoperability features seems widespread, having been implemented in +nearly all major Fortran compilers (e.g. GNU, Intel, IBM, +Oracle/Solaris, Portland Group, NAG). +<a name="index-portability-4"></a> +</p> +<p>This chapter documents that interface. For the most part, since this +interface allows Fortran to call the C interface directly, the usage +is identical to C translated to Fortran syntax. However, there are a +few subtle points such as memory allocation, wisdom, and data types +that deserve closer attention. +</p> +<table class="menu" border="0" cellspacing="0"> +<tr><td align="left" valign="top">• <a href="Overview-of-Fortran-interface.html#Overview-of-Fortran-interface" accesskey="1">Overview of Fortran interface</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="Reversing-array-dimensions.html#Reversing-array-dimensions" accesskey="2">Reversing array dimensions</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="FFTW-Fortran-type-reference.html#FFTW-Fortran-type-reference" accesskey="3">FFTW Fortran type reference</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="Plan-execution-in-Fortran.html#Plan-execution-in-Fortran" accesskey="4">Plan execution in Fortran</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="Allocating-aligned-memory-in-Fortran.html#Allocating-aligned-memory-in-Fortran" accesskey="5">Allocating aligned memory in Fortran</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="Accessing-the-wisdom-API-from-Fortran.html#Accessing-the-wisdom-API-from-Fortran" accesskey="6">Accessing the wisdom API from Fortran</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +<tr><td align="left" valign="top">• <a href="Defining-an-FFTW-module.html#Defining-an-FFTW-module" accesskey="7">Defining an FFTW module</a>:</td><td> </td><td align="left" valign="top"> +</td></tr> +</table> + + + + +</body> +</html>