From bc917cb865c546fcf354a92540383ff8427bead8 Mon Sep 17 00:00:00 2001
From: Ian Bell <ian.bell@nist.gov>
Date: Thu, 8 Jul 2021 18:09:35 -0400
Subject: [PATCH] Even more explicit return type

---
 include/teqp/algorithms/VLE.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/teqp/algorithms/VLE.hpp b/include/teqp/algorithms/VLE.hpp
index 346a05b..9367b4d 100644
--- a/include/teqp/algorithms/VLE.hpp
+++ b/include/teqp/algorithms/VLE.hpp
@@ -138,7 +138,8 @@ auto linsolve(const A &a, const B& b) {
 }
 
 template<class Model, class Scalar, class VecType>
-auto get_drhovecdp_Tsat(const Model& model, const Scalar &T, const VecType& rhovecL, const VecType& rhovecV) {
+std::tuple< Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic>, Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic>>
+get_drhovecdp_Tsat(const Model& model, const Scalar &T, const VecType& rhovecL, const VecType& rhovecV) {
     //tic = timeit.default_timer();
     using id = IsochoricDerivatives<Model, Scalar, VecType>;
     Eigen::Matrix<Scalar, Eigen::Dynamic, Eigen::Dynamic> Hliq = id::build_Psi_Hessian_autodiff(model, T, rhovecL).eval();
-- 
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