refactor(poly): updated header guards to pragma once

src/poly/utils/public/integrators.h

@@ -18,8 +18,7 @@
 //   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 //
 // *********************************************************************** */
-#ifndef POLYMFEMUTILS_H
-#define POLYMFEMUTILS_H
+#pragma once
 
 #include "mfem.hpp"
 #include <string>
@@ -28,7 +27,7 @@
 
 
 /**
- * @file polyMFEMUtils.h
+ * @file integrators.h
  * @brief A collection of utilities for working with MFEM and solving the lane-emden equation.
  */
 
@@ -42,24 +41,18 @@ namespace polyMFEMUtils {
    * @brief A class for nonlinear power integrator.
    */
   class NonlinearPowerIntegrator: public mfem::NonlinearFormIntegrator {
-  private: 
-    Config& m_config = Config::getInstance();
-    Probe::LogManager& m_logManager = Probe::LogManager::getInstance();
-    quill::Logger* m_logger = m_logManager.getLogger("log");
-    mfem::Coefficient &m_coeff;
-    double m_polytropicIndex;
   public:
     /**
      * @brief Constructor for NonlinearPowerIntegrator.
-     * 
+     *
      * @param coeff The function coefficient.
      * @param n The polytropic index.
      */
-    NonlinearPowerIntegrator(mfem::Coefficient &coeff, double n);
+    NonlinearPowerIntegrator(double n);
 
     /**
      * @brief Assembles the element vector.
-     * 
+     *
      * @param el The finite element.
      * @param Trans The element transformation.
      * @param elfun The element function.
@@ -68,14 +61,17 @@ namespace polyMFEMUtils {
      virtual void AssembleElementVector(const mfem::FiniteElement &el, mfem::ElementTransformation &Trans, const mfem::Vector &elfun, mfem::Vector &elvect) override;
     /**
      * @brief Assembles the element gradient.
-     * 
+     *
      * @param el The finite element.
      * @param Trans The element transformation.
      * @param elfun The element function.
      * @param elmat The element matrix to be assembled.
      */
      virtual void AssembleElementGrad (const mfem::FiniteElement &el, mfem::ElementTransformation &Trans, const mfem::Vector &elfun, mfem::DenseMatrix &elmat) override;
+  private:
+    Config& m_config = Config::getInstance();
+    Probe::LogManager& m_logManager = Probe::LogManager::getInstance();
+    quill::Logger* m_logger = m_logManager.getLogger("log");
+    double m_polytropicIndex;
   };
-} // namespace polyMFEMUtils
-
-#endif // POLYMFEMUTILS_H
+} // namespace polyMFEMUtils