annotate armadillo-3.900.4/include/armadillo_bits/fn_fft.hpp @ 84:55a047986812 tip

Update library URI so as not to be document-local
author Chris Cannam
date Wed, 22 Apr 2020 14:21:57 +0100
parents 1ec0e2823891
children
rev   line source
Chris@49 1 // Copyright (C) 2013 Conrad Sanderson
Chris@49 2 // Copyright (C) 2013 NICTA (www.nicta.com.au)
Chris@49 3 //
Chris@49 4 // This Source Code Form is subject to the terms of the Mozilla Public
Chris@49 5 // License, v. 2.0. If a copy of the MPL was not distributed with this
Chris@49 6 // file, You can obtain one at http://mozilla.org/MPL/2.0/.
Chris@49 7
Chris@49 8
Chris@49 9 //! \addtogroup fn_fft
Chris@49 10 //! @{
Chris@49 11
Chris@49 12
Chris@49 13
Chris@49 14 // TODO: fft(real) -> complex [to be tested thoroughly]
Chris@49 15 // TODO: fft(complex) -> complex [to be tested thoroughly]
Chris@49 16 // TODO: ifft(complex) -> complex [to be tested thoroughly]
Chris@49 17
Chris@49 18
Chris@49 19 template<typename T1>
Chris@49 20 inline
Chris@49 21 typename
Chris@49 22 enable_if2
Chris@49 23 <
Chris@49 24 (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
Chris@49 25 const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
Chris@49 26 >::result
Chris@49 27 fft(const T1& A)
Chris@49 28 {
Chris@49 29 arma_extra_debug_sigprint();
Chris@49 30
Chris@49 31 return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, uword(0), uword(1));
Chris@49 32 }
Chris@49 33
Chris@49 34
Chris@49 35
Chris@49 36 template<typename T1>
Chris@49 37 inline
Chris@49 38 typename
Chris@49 39 enable_if2
Chris@49 40 <
Chris@49 41 (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
Chris@49 42 const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
Chris@49 43 >::result
Chris@49 44 fft(const T1& A, const uword N)
Chris@49 45 {
Chris@49 46 arma_extra_debug_sigprint();
Chris@49 47
Chris@49 48 return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, N, uword(0));
Chris@49 49 }
Chris@49 50
Chris@49 51
Chris@49 52
Chris@49 53 template<typename T1>
Chris@49 54 inline
Chris@49 55 typename
Chris@49 56 enable_if2
Chris@49 57 <
Chris@49 58 (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49 59 const Op<T1, op_fft_cx>
Chris@49 60 >::result
Chris@49 61 fft(const T1& A)
Chris@49 62 {
Chris@49 63 arma_extra_debug_sigprint();
Chris@49 64
Chris@49 65 return Op<T1, op_fft_cx>(A, uword(0), uword(1));
Chris@49 66 }
Chris@49 67
Chris@49 68
Chris@49 69
Chris@49 70 template<typename T1>
Chris@49 71 inline
Chris@49 72 typename
Chris@49 73 enable_if2
Chris@49 74 <
Chris@49 75 (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49 76 const Op<T1, op_fft_cx>
Chris@49 77 >::result
Chris@49 78 fft(const T1& A, const uword N)
Chris@49 79 {
Chris@49 80 arma_extra_debug_sigprint();
Chris@49 81
Chris@49 82 return Op<T1, op_fft_cx>(A, N, uword(0));
Chris@49 83 }
Chris@49 84
Chris@49 85
Chris@49 86
Chris@49 87 template<typename T1>
Chris@49 88 inline
Chris@49 89 typename
Chris@49 90 enable_if2
Chris@49 91 <
Chris@49 92 (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49 93 const Op<T1, op_ifft_cx>
Chris@49 94 >::result
Chris@49 95 ifft(const T1& A)
Chris@49 96 {
Chris@49 97 arma_extra_debug_sigprint();
Chris@49 98
Chris@49 99 return Op<T1, op_ifft_cx>(A, uword(0), uword(1));
Chris@49 100 }
Chris@49 101
Chris@49 102
Chris@49 103
Chris@49 104 template<typename T1>
Chris@49 105 inline
Chris@49 106 typename
Chris@49 107 enable_if2
Chris@49 108 <
Chris@49 109 (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49 110 const Op<T1, op_ifft_cx>
Chris@49 111 >::result
Chris@49 112 ifft(const T1& A, const uword N)
Chris@49 113 {
Chris@49 114 arma_extra_debug_sigprint();
Chris@49 115
Chris@49 116 return Op<T1, op_ifft_cx>(A, N, uword(0));
Chris@49 117 }
Chris@49 118
Chris@49 119
Chris@49 120
Chris@49 121 //! @}