Minor cuda stuff

dlib/dnn/cudnn.h

@@ -5,7 +5,6 @@
 
 #ifdef DLIB_USE_CUDA
 
-#include "tensor.h"
 
 namespace dlib
 {
@@ -128,9 +127,9 @@ namespace dlib
                    calls cudnnAddTensor_v3()
 
                    This function adds the scaled values of one bias tensor to another
-                   tensor. Each dimension of the bias tensor must match the coresponding
+                   tensor. Each dimension of the bias tensor must match the corresponding
                    dimension of the srcDest tensor or must be equal to 1. In the latter
-                   case, the same value from the bias tensor for thoses dimensions will be
+                   case, the same value from the bias tensor for those dimensions will be
                    used to blend into the srcDest tensor.
         !*/
 

dlib/dnn/tensor.h

@@ -66,12 +66,16 @@ namespace dlib
 
         void async_copy_to_device() 
         {
+#ifdef DLIB_USE_CUDA
             // TODO
+#endif
         }
 
         void async_copy_to_host() 
         {
+#ifdef DLIB_USE_CUDA
             // TODO
+#endif
         }
 
         const float* host() const 
@@ -89,12 +93,18 @@ namespace dlib
 
         const float* device() const 
         { 
+#ifndef DLIB_USE_CUDA
+            DLIB_CASSERT(false, "CUDA NOT ENABLED");
+#endif
             copy_to_device();
             return data_device.get(); 
         }
 
         float* device() 
         {
+#ifndef DLIB_USE_CUDA
+            DLIB_CASSERT(false, "CUDA NOT ENABLED");
+#endif
             copy_to_device();
             host_current = false;
             return data_device.get(); 
@@ -108,7 +118,9 @@ namespace dlib
         {
             if (!device_current)
             {
+#ifdef DLIB_USE_CUDA
                 // TODO, cudamemcpy()
+#endif
                 device_current = true;
             }
         }
@@ -117,7 +129,9 @@ namespace dlib
         {
             if (!host_current)
             {
+#ifdef DLIB_USE_CUDA
                 // TODO, cudamemcpy()
+#endif
                 host_current = true;
             }
         }