Mercurial > octave
view libinterp/corefcn/fftn.cc @ 23738:8acd390d16c9
don't use singleton for stream_list object
* oct-stream.h, oct-stream.cc (stream_list): Don't use singleton
pattern. Change all uses.
(stream_list::stream_list): Initialize stdin, stdout, and stderr
streams here.
(stream_list::~stream_list): Close files here.
(stream_list::m_stdin_file, stream_list::m_stdout_file,
stream_list::m_stderr_file): New data members.
(stream_list::stdin_file, stream_list::stdout_file,
stream_list::stderr_file): New functions.
* interpreter.h, interpreter.cc (interpreter::m_stream_list):
New data member.
(interpreter::interpreter): Initialize it. Don't call
initialize_file_io.
(interpreter::~interpreter): Don't call close_files.
(interpreter::get_stream_list): New function.
* file-io.h, file-io.cc (stdin_file, stdout_file, stderr_file,
stdin_stream, stdout_stream, stderr_stream): Delete static variables.
(initialize_file_io, close_files): Delete. These actions are now
handled by the stream_list constructor and destructor.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Thu, 06 Jul 2017 13:34:31 -0400 |
parents | 0cc2011d800e |
children | 194eb4bd202b |
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/* Copyright (C) 2004-2017 David Bateman This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #if defined (HAVE_CONFIG_H) # include "config.h" #endif #include "lo-mappers.h" #include "defun.h" #include "error.h" #include "errwarn.h" #include "ovl.h" #include "utils.h" // This function should be merged with Fifft. #if defined (HAVE_FFTW) # define FFTSRC "@sc{fftw}" #else # define FFTSRC "@sc{fftpack}" #endif static octave_value do_fftn (const octave_value_list& args, const char *fcn, int type) { int nargin = args.length (); if (nargin < 1 || nargin > 2) print_usage (); octave_value retval; octave_value arg = args(0); dim_vector dims = arg.dims (); for (int i = 0; i < dims.ndims (); i++) if (dims(i) < 0) return retval; if (nargin > 1) { Matrix val = args(1).xmatrix_value ("%s: SIZE must be a vector of length dim", fcn); if (val.rows () > val.columns ()) val = val.transpose (); if (val.columns () != dims.ndims () || val.rows () != 1) error ("%s: SIZE must be a vector of length dim", fcn); for (int i = 0; i < dims.ndims (); i++) { if (octave::math::isnan (val(i,0))) error ("%s: SIZE has invalid NaN entries", fcn); else if (octave::math::nint_big (val(i,0)) < 0) error ("%s: all dimensions in SIZE must be greater than zero", fcn); else dims(i) = octave::math::nint_big(val(i,0)); } } if (dims.all_zero ()) { if (arg.is_single_type ()) return octave_value (FloatMatrix ()); else return octave_value (Matrix ()); } if (arg.is_single_type ()) { if (arg.isreal ()) { FloatNDArray nda = arg.float_array_value (); nda.resize (dims, 0.0); retval = (type != 0 ? nda.ifourierNd () : nda.fourierNd ()); } else { FloatComplexNDArray cnda = arg.float_complex_array_value (); cnda.resize (dims, 0.0); retval = (type != 0 ? cnda.ifourierNd () : cnda.fourierNd ()); } } else { if (arg.isreal ()) { NDArray nda = arg.array_value (); nda.resize (dims, 0.0); retval = (type != 0 ? nda.ifourierNd () : nda.fourierNd ()); } else if (arg.iscomplex ()) { ComplexNDArray cnda = arg.complex_array_value (); cnda.resize (dims, 0.0); retval = (type != 0 ? cnda.ifourierNd () : cnda.fourierNd ()); } else err_wrong_type_arg (fcn, arg); } return retval; } DEFUN (fftn, args, , doc: /* -*- texinfo -*- @deftypefn {} {} fftn (@var{A}) @deftypefnx {} {} fftn (@var{A}, @var{size}) Compute the N-dimensional discrete Fourier transform of @var{A} using a Fast Fourier Transform (FFT) algorithm. The optional vector argument @var{size} may be used specify the dimensions of the array to be used. If an element of @var{size} is smaller than the corresponding dimension of @var{A}, then the dimension of @var{A} is truncated prior to performing the FFT@. Otherwise, if an element of @var{size} is larger than the corresponding dimension then @var{A} is resized and padded with zeros. @seealso{ifftn, fft, fft2, fftw} @end deftypefn */) { return do_fftn (args, "fftn", 0); } DEFUN (ifftn, args, , doc: /* -*- texinfo -*- @deftypefn {} {} ifftn (@var{A}) @deftypefnx {} {} ifftn (@var{A}, @var{size}) Compute the inverse N-dimensional discrete Fourier transform of @var{A} using a Fast Fourier Transform (FFT) algorithm. The optional vector argument @var{size} may be used specify the dimensions of the array to be used. If an element of @var{size} is smaller than the corresponding dimension of @var{A}, then the dimension of @var{A} is truncated prior to performing the inverse FFT@. Otherwise, if an element of @var{size} is larger than the corresponding dimension then @var{A} is resized and padded with zeros. @seealso{fftn, ifft, ifft2, fftw} @end deftypefn */) { return do_fftn (args, "ifftn", 1); }