improve CMake for cuda_mav.cuh header only library

Author: SimeonEhrig

.gitignore

@@ -7,3 +7,4 @@
 .idea
 cmake-build*/
 out/
+build/

CMakeLists.txt

@@ -7,11 +7,9 @@ set(CMAKE_CUDA_ARCHITECTURES 61)
 
 project(GPU_memory_access_visualization LANGUAGES CUDA)
 
+# define header only target
+add_library(CUDA_MAV_HEADER INTERFACE)
+target_include_directories(CUDA_MAV_HEADER INTERFACE ${PROJECT_SOURCE_DIR}/include)
 
-
-include_directories(.)
-include_directories(src)
-
-
-add_executable(GPU_memory_access_visualization
-        src/cuda_mav.cu src/cuda_mav.h)
+# the visualization function is no standalone application, therefore we test it with some examples
+add_subdirectory(examples/basic)

examples/basic/CMakeLists.txt

@@ -1,5 +1,4 @@
-cmake_minimum_required(VERSION 3.18)
-project(ranges LANGUAGES CUDA)
+cmake_minimum_required(VERSION 3.24)
 
 set(_TARGET_NORMAL normal)
 
@@ -11,6 +10,8 @@ set_target_properties(${_TARGET_NORMAL} PROPERTIES
   CUDA_CXX_STANDARD 17
 )
 
+# add include path to the cuda_mav.cuh header
+target_link_libraries(${_TARGET_NORMAL} PRIVATE CUDA_MAV_HEADER)
 
 set(_TARGET_ANNOTATED annotated)
 

examples/basic/normal.cu

@@ -1,7 +1,7 @@
 #include <vector>
 #include <numeric>
 #include <iostream>
-#include "../../src/cuda_mav.cu"
+#include "cuda_mav.cuh"
 
 inline void checkCudaError(cudaError_t err) {
     if (err != cudaSuccess) {

src/cuda_mav.cu renamed to include/cuda_mav.cuh

@@ -1,8 +1,12 @@
+#pragma once
+
 #include <stdexcept>
 #include <cstdio>
 #include <fstream>
 #include <functional>
 #include <sstream>
+#include <vector>
+#include <iostream>
 
 // Define a custom template class which holds the data for the CUDA kernel
 template <typename T>