Fixed some methods that should have been marked const

platforms/cuda/include/CudaContext.h

@@ -352,30 +352,30 @@ public:
     /**
      * Get whether double precision is being used.
      */
-    bool getUseDoublePrecision() {
+    bool getUseDoublePrecision() const {
         return useDoublePrecision;
     }
     /**
      * Get whether mixed precision is being used.
      */
-    bool getUseMixedPrecision() {
+    bool getUseMixedPrecision() const {
         return useMixedPrecision;
     }
     /**
      * Get whether the periodic box is triclinic.
      */
-    bool getBoxIsTriclinic() {
+    bool getBoxIsTriclinic() const {
         return boxIsTriclinic;
     }
     /**
      * Convert a number to a string in a format suitable for including in a kernel.
      * This takes into account whether the context uses single or double precision.
      */
-    std::string doubleToString(double value);
+    std::string doubleToString(double value) const;
     /**
      * Convert a number to a string in a format suitable for including in a kernel.
      */
-    std::string intToString(int value);
+    std::string intToString(int value) const;
     /**
      * Convert a CUDA result code to the corresponding string description.
      */

platforms/cuda/src/CudaContext.cpp

@@ -594,7 +594,7 @@ void CudaContext::restoreDefaultStream() {
     setCurrentStream(0);
 }
 
-string CudaContext::doubleToString(double value) {
+string CudaContext::doubleToString(double value) const {
     stringstream s;
     s.precision(useDoublePrecision ? 16 : 8);
     s << scientific << value;
@@ -603,7 +603,7 @@ string CudaContext::doubleToString(double value) {
     return s.str();
 }
 
-string CudaContext::intToString(int value) {
+string CudaContext::intToString(int value) const {
     stringstream s;
     s << value;
     return s.str();