Add Var::getVar

.github/workflows/pages.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: ssciwr/doxygen-install@v1
         with:
-          version: "1.20.0"
+          version: "1.12.0"
       - uses: ts-graphviz/setup-graphviz@v1
       - name: Prepare Doxygen Config
         run: echo "PROJECT_NUMBER = ${GITHUB_REF}" >> Doxyfile

changelog.md

@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - [PR27](https://github.com/scipopt/SCIPpp/pull/27) Update to SCIP 9.2.0.
 
+## Added
+
+- [PR28](https://github.com/scipopt/SCIPpp/pull/28) Add `Var::getVar`.
+
 ## [1.2.0] - 2024-05-21
 
 ### Changed

include/scippp/var.hpp

@@ -15,8 +15,27 @@ struct Solution;
  * @since 1.0.0
  */
 struct Var {
-    //! Pointer to the underlying %SCIP variable.
+    /**
+     * Pointer to the underlying %SCIP variable.
+     * @deprecated since 1.3.0: Use #getVar() instead
+     */
     SCIP_Var* var { nullptr };
+
+    /**
+     * Pointer to the underlying %SCIP variable.
+     * @since 1.3.0
+     * @return underlying %SCIP variable.
+     */
+    [[nodiscard]] SCIP_Var* getVar();
+
+    /**
+     * Pointer to the underlying %SCIP variable.
+     *
+     * @since 1.3.0
+     * @return underlying %SCIP variable.
+     */
+    [[nodiscard]] SCIP_Var* const getVar() const;
+
     /**
      * Get the assigned value in the solution.
      * @since 1.0.0

source/model.cpp

@@ -79,7 +79,7 @@ void Model::addConstr(const scippp::LinIneq& ineq, const std::string& name)
         ineq.m_lhs, /* left hand side of constraint */
         ineq.m_rhs.has_value() ? ineq.m_rhs.value() : infinity()));
     for (size_t index { 0 }; index < ineq.m_linExpr.m_vars.size(); index++) {
-        m_scipCallWrapper(SCIPaddCoefLinear(m_scip, con, ineq.m_linExpr.m_vars.at(index).var, ineq.m_linExpr.m_coeffs.at(index)));
+        m_scipCallWrapper(SCIPaddCoefLinear(m_scip, con, ineq.m_linExpr.m_vars.at(index).getVar(), ineq.m_linExpr.m_coeffs.at(index)));
     }
     m_scipCallWrapper(SCIPaddCons(m_scip, con));
     m_cons.push_back(con);

source/var.cpp

@@ -1,11 +1,22 @@
 #include "scippp/var.hpp"
 
 #include "scippp/solution.hpp"
+
 #include <scip/scip_numerics.h>
 #include <scip/scip_sol.h>
 
 namespace scippp {
 
+SCIP_Var* Var::getVar()
+{
+    return var;
+}
+
+SCIP_Var* const Var::getVar() const
+{
+    return var;
+}
+
 double Var::getSolVal(const Solution& sol) const
 {
     return SCIPgetSolVal(sol.scip, sol.sol, var);

test/test_var.cpp

@@ -66,6 +66,7 @@ BOOST_AUTO_TEST_CASE(IsVoid)
 {
     scippp::Var x;
     BOOST_TEST(x.var == nullptr);
+    BOOST_TEST(x.getVar() == nullptr);
     BOOST_TEST(x.isVoid());
 
     Model model("Simple");