123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
// Copyright (C) 2013 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup fn_fft
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//! @{
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// 1D FFT & 1D IFFT
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
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const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
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>::result
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fft(const T1& A)
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{
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arma_extra_debug_sigprint();
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return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, uword(0), uword(1));
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}
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
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const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
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>::result
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fft(const T1& A, const uword N)
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{
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arma_extra_debug_sigprint();
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return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, N, uword(0));
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}
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
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const Op<T1, op_fft_cx>
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>::result
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fft(const T1& A)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_fft_cx>(A, uword(0), uword(1));
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}
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
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const Op<T1, op_fft_cx>
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>::result
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fft(const T1& A, const uword N)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_fft_cx>(A, N, uword(0));
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}
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
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const Op<T1, op_ifft_cx>
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>::result
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ifft(const T1& A)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_ifft_cx>(A, uword(0), uword(1));
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}
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template<typename T1>
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inline
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typename
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enable_if2
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<
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(is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
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const Op<T1, op_ifft_cx>
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>::result
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ifft(const T1& A, const uword N)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_ifft_cx>(A, N, uword(0));
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}
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//! @}
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