diff options
Diffstat (limited to 'unsupported/Eigen/src/FFT/ei_kissfft_impl.h')
| -rw-r--r-- | unsupported/Eigen/src/FFT/ei_kissfft_impl.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/unsupported/Eigen/src/FFT/ei_kissfft_impl.h b/unsupported/Eigen/src/FFT/ei_kissfft_impl.h index 37f5af4c1..be51b4e6f 100644 --- a/unsupported/Eigen/src/FFT/ei_kissfft_impl.h +++ b/unsupported/Eigen/src/FFT/ei_kissfft_impl.h @@ -28,6 +28,7 @@ struct kiss_cpx_fft inline void make_twiddles(int nfft,bool inverse) { + using std::acos; m_inverse = inverse; m_twiddles.resize(nfft); Scalar phinc = (inverse?2:-2)* acos( (Scalar) -1) / nfft; @@ -399,6 +400,7 @@ struct kissfft_impl inline Complex * real_twiddles(int ncfft2) { + using std::acos; std::vector<Complex> & twidref = m_realTwiddles[ncfft2];// creates new if not there if ( (int)twidref.size() != ncfft2 ) { twidref.resize(ncfft2); |