Completed cmake_ndebug_test

Tested with Visual Studio, NDEBUG=1 for all but Debug builds.

Author: mloskot

cmake/CMakeLists.txt

@@ -1,4 +1,11 @@
 cmake_minimum_required(VERSION 2.8)
 project(workshop-cmake)
 
-add_executable(cmake_ndebug_test)
+configure_file(
+	${CMAKE_SOURCE_DIR}/cmake_build_type.h.in
+	${CMAKE_BINARY_DIR}/cmake_build_type.h
+	@ONLY)
+
+include_directories(${CMAKE_BINARY_DIR})
+
+add_executable(cmake_ndebug_test cmake_ndebug_test.cpp)

cmake/cmake_build_type.h.in

@@ -0,0 +1 @@
+#define CMAKE_BUILD_TYPE    "@CMAKE_BUILD_TYPE@"

cmake/cmake_ndebug_test.cpp

@@ -1,11 +1,15 @@
-//
 // Does CMake define NDEBUG in non-Debug builds?
-//
+#include "cmake_build_type.h"
 #include <cstdio>
+
 int main()
 {
+    // Possible values are empty, Debug, Release, RelWithDebInfo and MinSizeRel.
+    // This variable is only supported for make based generators.
+    std::printf("CMAKE_BUILD_TYPE=%s\n", CMAKE_BUILD_TYPE);
 #ifdef NDEBUG
+    std::printf("NDEBUG=%d\n", NDEBUG);
 #else
+    std::puts("NDEBUG not defined");
 #endif
-
 }