Made the cuda test include some header files to make it a little more

realistic.

dlib/dnn/test_for_cuda/CMakeLists.txt

@@ -2,6 +2,9 @@
 cmake_minimum_required(VERSION 2.8.4)
 project(cuda_test)
 
+include_directories(..)
+add_definitions(-DDLIB_USE_CUDA)
+
 find_package(CUDA 7.0 REQUIRED)
 set(CUDA_HOST_COMPILATION_CPP ON)
 list(APPEND CUDA_NVCC_FLAGS "-arch=sm_30;-std=c++11;-D__STRICT_ANSI__")

dlib/dnn/test_for_cuda/cuda_test.cu

 // Copyright (C) 2015  Davis E. King (davis@dlib.net)
 // License: Boost Software License   See LICENSE.txt for the full license.
 
-#include <cuda_runtime.h>
+#include "cuda_utils.h"
+#include "cuda_dlib.h"
 
 
 // ------------------------------------------------------------------------------------