50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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#if defined(ARMA_USE_FFTW3)
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extern "C"
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{
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// function prefix for single precision: fftwf_
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// function prefix for double precision: fftw_
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// single precision (float)
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void_ptr fftwf_plan_dft_1d(int N, void* input, void* output, int fftw3_sign, unsigned int fftw3_flags);
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void fftwf_execute(void_ptr plan);
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void fftwf_destroy_plan(void_ptr plan);
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void fftwf_cleanup();
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// double precision (double)
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void_ptr fftw_plan_dft_1d(int N, void* input, void* output, int fftw3_sign, unsigned int fftw3_flags);
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void fftw_execute(void_ptr plan);
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void fftw_destroy_plan(void_ptr plan);
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void fftw_cleanup();
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}
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#endif
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