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-rw-r--r--unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h b/unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h
index 1918392d1..d6db45ade 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorFFT.h
@@ -12,7 +12,7 @@
// This code requires the ability to initialize arrays of constant
// values directly inside a class.
-#ifdef EIGEN_HAS_CONSTEXPR
+#if __cplusplus >= 201103L || EIGEN_COMP_MSVC >= 1900
namespace Eigen {
@@ -565,7 +565,7 @@ struct TensorEvaluator<const TensorFFTOp<FFT, ArgType, FFTResultType, FFTDir>, D
// This will support a maximum FFT size of 2^32 for each dimension
// m_sin_PI_div_n_LUT[i] = (-2) * std::sin(M_PI / std::pow(2,i)) ^ 2;
- RealScalar m_sin_PI_div_n_LUT[32] = {
+ const RealScalar m_sin_PI_div_n_LUT[32] = {
RealScalar(0.0),
RealScalar(-2),
RealScalar(-0.999999999999999),
@@ -601,7 +601,7 @@ struct TensorEvaluator<const TensorFFTOp<FFT, ArgType, FFTResultType, FFTDir>, D
};
// m_minus_sin_2_PI_div_n_LUT[i] = -std::sin(2 * M_PI / std::pow(2,i));
- RealScalar m_minus_sin_2_PI_div_n_LUT[32] = {
+ const RealScalar m_minus_sin_2_PI_div_n_LUT[32] = {
RealScalar(0.0),
RealScalar(0.0),
RealScalar(-1.00000000000000e+00),