Minor code cleanup to reference platform

docs-source/developerguide/developer.rst

@@ -319,17 +319,8 @@ other Platforms.
 
 When using the reference Platform, the “platform-specific data” stored in
 ContextImpl is of type ReferencePlatform::PlatformData, which is declared in
-ReferencePlatform.h.  Several of the fields in this class are declared as void*
-to avoid having to include SimTKOpenMMRealType.h in ReferencePlatform.h.  If you
-look in ReferenceKernels.cpp, you will find code for extracting the correct
-values of these fields.  For example:
-::
-
-    static vector<Vec3>& extractPositions(ContextImpl& context) {
-        ReferencePlatform::PlatformData* data =
-                reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-        return *((vector<Vec3>*) data->positions);
-    }
+ReferencePlatform.h.  It has fields for storing positions, velocities, box
+vectors, and other types of data.
 
 The PlatformData’s vector of forces contains one element for each particle.  At
 the start of each force evaluation, all elements of it are set to zero.  Each

platforms/cpu/src/CpuKernels.cpp

@@ -58,37 +58,37 @@ using namespace std;
 
 static vector<Vec3>& extractPositions(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->positions);
+    return *data->positions;
 }
 
 static vector<Vec3>& extractVelocities(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->velocities);
+    return *data->velocities;
 }
 
 static vector<Vec3>& extractForces(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->forces);
+    return *data->forces;
 }
 
 static Vec3& extractBoxSize(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(Vec3*) data->periodicBoxSize;
+    return *data->periodicBoxSize;
 }
 
 static Vec3* extractBoxVectors(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return (Vec3*) data->periodicBoxVectors;
+    return data->periodicBoxVectors;
 }
 
 static ReferenceConstraints& extractConstraints(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(ReferenceConstraints*) data->constraints;
+    return *data->constraints;
 }
 
 static map<string, double>& extractEnergyParameterDerivatives(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((map<string, double>*) data->energyParameterDerivatives);
+    return *data->energyParameterDerivatives;
 }
 
 /**

platforms/reference/include/ReferencePlatform.h

@@ -9,7 +9,7 @@
  * Biological Structures at Stanford, funded under the NIH Roadmap for        *
  * Medical Research, grant U54 GM072970. See https://simtk.org.               *
  *                                                                            *
- * Portions copyright (c) 2008-2016 Stanford University and the Authors.      *
+ * Portions copyright (c) 2008-2019 Stanford University and the Authors.      *
  * Authors: Peter Eastman                                                     *
  * Contributors:                                                              *
  *                                                                            *
@@ -35,6 +35,9 @@
 #include "openmm/Platform.h"
 #include "openmm/System.h"
 #include "openmm/internal/windowsExport.h"
+#include "ReferenceConstraints.h"
+#include <map>
+#include <vector>
 
 namespace OpenMM {
 
@@ -62,13 +65,13 @@ public:
     ~PlatformData();
     int numParticles, stepCount;
     double time;
-    void* positions;
-    void* velocities;
-    void* forces;
-    void* periodicBoxSize;
-    void* periodicBoxVectors;
-    void* constraints;
-    void* energyParameterDerivatives;
+    std::vector<Vec3>* positions;
+    std::vector<Vec3>* velocities;
+    std::vector<Vec3>* forces;
+    Vec3* periodicBoxSize;
+    Vec3* periodicBoxVectors;
+    ReferenceConstraints* constraints;
+    std::map<std::string, double>* energyParameterDerivatives;
 };
 } // namespace OpenMM
 

platforms/reference/src/ReferenceKernels.cpp

@@ -91,37 +91,37 @@ using namespace std;
 
 static vector<Vec3>& extractPositions(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->positions);
+    return *data->positions;
 }
 
 static vector<Vec3>& extractVelocities(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->velocities);
+    return *data->velocities;
 }
 
 static vector<Vec3>& extractForces(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->forces);
+    return *data->forces;
 }
 
 static Vec3& extractBoxSize(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(Vec3*) data->periodicBoxSize;
+    return *data->periodicBoxSize;
 }
 
 static Vec3* extractBoxVectors(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return (Vec3*) data->periodicBoxVectors;
+    return data->periodicBoxVectors;
 }
 
 static ReferenceConstraints& extractConstraints(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(ReferenceConstraints*) data->constraints;
+    return *data->constraints;
 }
 
 static map<string, double>& extractEnergyParameterDerivatives(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((map<string, double>*) data->energyParameterDerivatives);
+    return *data->energyParameterDerivatives;
 }
 
 /**

platforms/reference/src/ReferencePlatform.cpp

@@ -6,7 +6,7 @@
  * Biological Structures at Stanford, funded under the NIH Roadmap for        *
  * Medical Research, grant U54 GM072970. See https://simtk.org.               *
  *                                                                            *
- * Portions copyright (c) 2008-2016 Stanford University and the Authors.      *
+ * Portions copyright (c) 2008-2019 Stanford University and the Authors.      *
  * Authors: Peter Eastman                                                     *
  * Contributors:                                                              *
  *                                                                            *
@@ -30,14 +30,11 @@
  * -------------------------------------------------------------------------- */
 
 #include "ReferencePlatform.h"
-#include "ReferenceConstraints.h"
 #include "ReferenceKernelFactory.h"
 #include "ReferenceKernels.h"
 #include "openmm/internal/ContextImpl.h"
 #include "SimTKOpenMMRealType.h"
 #include "openmm/Vec3.h"
-#include <map>
-#include <vector>
 
 using namespace OpenMM;
 using namespace std;
@@ -107,11 +104,11 @@ ReferencePlatform::PlatformData::PlatformData(const System& system) : time(0.0),
 }
 
 ReferencePlatform::PlatformData::~PlatformData() {
-    delete (vector<Vec3>*) positions;
-    delete (vector<Vec3>*) velocities;
-    delete (vector<Vec3>*) forces;
-    delete (Vec3*) periodicBoxSize;
-    delete[] (Vec3*) periodicBoxVectors;
-    delete (ReferenceConstraints*) constraints;
-    delete (map<string, double>*) energyParameterDerivatives;
+    delete positions;
+    delete velocities;
+    delete forces;
+    delete periodicBoxSize;
+    delete[] periodicBoxVectors;
+    delete constraints;
+    delete energyParameterDerivatives;
 }

plugins/amoeba/platforms/reference/src/AmoebaReferenceKernels.cpp

@@ -58,27 +58,27 @@ using namespace std;
 
 static vector<Vec3>& extractPositions(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->positions);
+    return *data->positions;
 }
 
 static vector<Vec3>& extractVelocities(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->velocities);
+    return *data->velocities;
 }
 
 static vector<Vec3>& extractForces(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->forces);
+    return *data->forces;
 }
 
 static Vec3& extractBoxSize(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(Vec3*) data->periodicBoxSize;
+    return *data->periodicBoxSize;
 }
 
 static Vec3* extractBoxVectors(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return (Vec3*) data->periodicBoxVectors;
+    return data->periodicBoxVectors;
 }
 
 // ***************************************************************************

plugins/drude/platforms/reference/src/ReferenceDrudeKernels.cpp

@@ -43,22 +43,22 @@ using namespace std;
 
 static vector<Vec3>& extractPositions(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->positions);
+    return *data->positions;
 }
 
 static vector<Vec3>& extractVelocities(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->velocities);
+    return *data->velocities;
 }
 
 static vector<Vec3>& extractForces(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->forces);
+    return *data->forces;
 }
 
 static ReferenceConstraints& extractConstraints(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *(ReferenceConstraints*) data->constraints;
+    return *data->constraints;
 }
 
 static double computeShiftedKineticEnergy(ContextImpl& context, vector<double>& inverseMasses, double timeShift) {

plugins/rpmd/platforms/reference/src/ReferenceRpmdKernels.cpp

@@ -39,17 +39,17 @@ using namespace std;
 
 static vector<Vec3>& extractPositions(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->positions);
+    return *data->positions;
 }
 
 static vector<Vec3>& extractVelocities(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->velocities);
+    return *data->velocities;
 }
 
 static vector<Vec3>& extractForces(ContextImpl& context) {
     ReferencePlatform::PlatformData* data = reinterpret_cast<ReferencePlatform::PlatformData*>(context.getPlatformData());
-    return *((vector<Vec3>*) data->forces);
+    return *data->forces;
 }
 
 ReferenceIntegrateRPMDStepKernel::~ReferenceIntegrateRPMDStepKernel() {