Chris@49: // Copyright (C) 2013 Conrad Sanderson
Chris@49: // Copyright (C) 2013 NICTA (www.nicta.com.au)
Chris@49: // 
Chris@49: // This Source Code Form is subject to the terms of the Mozilla Public
Chris@49: // License, v. 2.0. If a copy of the MPL was not distributed with this
Chris@49: // file, You can obtain one at http://mozilla.org/MPL/2.0/.
Chris@49: 
Chris@49: 
Chris@49: //! \addtogroup fn_fft
Chris@49: //! @{
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: // TODO:  fft(real)     -> complex [to be tested thoroughly]
Chris@49: // TODO:  fft(complex)  -> complex [to be tested thoroughly]
Chris@49: // TODO: ifft(complex)  -> complex [to be tested thoroughly]
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
Chris@49:   const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
Chris@49:   >::result
Chris@49: fft(const T1& A)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, uword(0), uword(1));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_real<typename T1::elem_type>::value),
Chris@49:   const mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>
Chris@49:   >::result
Chris@49: fft(const T1& A, const uword N)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return mtOp<std::complex<typename T1::pod_type>, T1, op_fft_real>(A, N, uword(0));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49:   const Op<T1, op_fft_cx>
Chris@49:   >::result
Chris@49: fft(const T1& A)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return Op<T1, op_fft_cx>(A, uword(0), uword(1));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49:   const Op<T1, op_fft_cx>
Chris@49:   >::result
Chris@49: fft(const T1& A, const uword N)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return Op<T1, op_fft_cx>(A, N, uword(0));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49:   const Op<T1, op_ifft_cx>
Chris@49:   >::result
Chris@49: ifft(const T1& A)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return Op<T1, op_ifft_cx>(A, uword(0), uword(1));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: template<typename T1>
Chris@49: inline
Chris@49: typename
Chris@49: enable_if2
Chris@49:   <
Chris@49:   (is_arma_type<T1>::value && is_complex_strict<typename T1::elem_type>::value),
Chris@49:   const Op<T1, op_ifft_cx>
Chris@49:   >::result
Chris@49: ifft(const T1& A, const uword N)
Chris@49:   {
Chris@49:   arma_extra_debug_sigprint();
Chris@49:   
Chris@49:   return Op<T1, op_ifft_cx>(A, N, uword(0));
Chris@49:   }
Chris@49: 
Chris@49: 
Chris@49: 
Chris@49: //! @}