diff options
author | Gael Guennebaud <g.gael@free.fr> | 2018-07-11 14:00:24 +0200 |
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committer | Gael Guennebaud <g.gael@free.fr> | 2018-07-11 14:00:24 +0200 |
commit | 1625476091c2c4576fe9f2eef91df4d0444dc9e0 (patch) | |
tree | b976a40611bb7d6a5311da28dd5992cd65e9ae17 /Eigen/src/Core/util/XprHelper.h | |
parent | fe723d6129f2fde60e91e7cef52a7907a0cb479f (diff) |
Add internall::is_identity compile-time helper
Diffstat (limited to 'Eigen/src/Core/util/XprHelper.h')
-rw-r--r-- | Eigen/src/Core/util/XprHelper.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Eigen/src/Core/util/XprHelper.h b/Eigen/src/Core/util/XprHelper.h index 3926d3a6c..e3231c712 100644 --- a/Eigen/src/Core/util/XprHelper.h +++ b/Eigen/src/Core/util/XprHelper.h @@ -676,6 +676,14 @@ template<typename T> struct is_diagonal<DiagonalWrapper<T> > template<typename T, int S> struct is_diagonal<DiagonalMatrix<T,S> > { enum { ret = true }; }; + +template<typename T> struct is_identity +{ enum { value = false }; }; + +template<typename T> struct is_identity<CwiseNullaryOp<internal::scalar_identity_op<typename T::Scalar>, T> > +{ enum { value = true }; }; + + template<typename S1, typename S2> struct glue_shapes; template<> struct glue_shapes<DenseShape,TriangularShape> { typedef TriangularShape type; }; |