From: Daniel Arndt <arndtd@ornl.gov>
Date: Fri, 22 Nov 2019 19:10:58 +0000 (-0500)
Subject: Make ddet_F_dC constexpr conditionally
X-Git-Tag: v9.2.0-rc1~859^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F9080%2Fhead;p=dealii.git

Make ddet_F_dC constexpr conditionally
---

diff --git a/include/deal.II/physics/elasticity/standard_tensors.h b/include/deal.II/physics/elasticity/standard_tensors.h
index 822d2b0c1e..ad9395919d 100644
--- a/include/deal.II/physics/elasticity/standard_tensors.h
+++ b/include/deal.II/physics/elasticity/standard_tensors.h
@@ -273,8 +273,8 @@ namespace Physics
        * @dealiiHolzapfelA{228,6.82}
        */
       template <typename Number>
-      static constexpr SymmetricTensor<2, dim, Number>
-      ddet_F_dC(const Tensor<2, dim, Number> &F);
+      static DEAL_II_CONSTEXPR SymmetricTensor<2, dim, Number>
+                               ddet_F_dC(const Tensor<2, dim, Number> &F);
 
       //@}
 
@@ -368,8 +368,8 @@ Physics::Elasticity::StandardTensors<dim>::Dev_P_T(
 
 template <int dim>
 template <typename Number>
-constexpr SymmetricTensor<2, dim, Number>
-Physics::Elasticity::StandardTensors<dim>::ddet_F_dC(
+DEAL_II_CONSTEXPR SymmetricTensor<2, dim, Number>
+                  Physics::Elasticity::StandardTensors<dim>::ddet_F_dC(
   const Tensor<2, dim, Number> &F)
 {
   return Number(0.5) * determinant(F) * symmetrize(invert(transpose(F) * F));