Tutorial: Update step 2 style

Help/guide/tutorial/Step2/CMakeLists.txt

@@ -7,13 +7,36 @@ project(Tutorial VERSION 1.0)
 set(CMAKE_CXX_STANDARD 11)
 set(CMAKE_CXX_STANDARD_REQUIRED True)
 
+# TODO 7: Create a variable MY_MATH using option and set default to ON
+
 # configure a header file to pass some of the CMake settings
 # to the source code
 configure_file(TutorialConfig.h.in TutorialConfig.h)
 
+# TODO 8: Use list() and APPEND to create a list of optional libraries
+# called  EXTRA_LIBS and a list of optional include directories called
+# EXTRA_INCLUDES. Add the MathFunctions library and source directory to
+# the appropriate lists.
+#
+# Only call add_subdirectory and only add MathFunctions specific values
+# to EXTRA_LIBS and EXTRA_INCLUDES if USE_MYMATH is true.
+
+# TODO 2: Use add_subdirectory() to add MathFunctions to this project
+
 # add the executable
 add_executable(Tutorial tutorial.cxx)
 
+# TODO 9: Use EXTRA_LIBS instead of the MathFunctions specific values
+# in target_link_libraries.
+
+# TODO 3: Use target_link_libraries to link the library to our executable
+
+# TODO 4: Add MathFunctions to Tutorial's target_include_directories()
+# Hint: ${PROJECT_SOURCE_DIR} is a path to the project source. AKA This folder!
+
+# TODO 10: Use EXTRA_INCLUDES instead of the MathFunctions specific values
+# in target_include_directories.
+
 # add the binary tree to the search path for include files
 # so that we will find TutorialConfig.h
 target_include_directories(Tutorial PUBLIC

Help/guide/tutorial/Step2/MathFunctions/CMakeLists.txt

@@ -0,0 +1,2 @@
+# TODO 1: Add a library called MathFunctions
+# Hint: You will need the add_library command

Help/guide/tutorial/Step2/TutorialConfig.h.in

@@ -1,3 +1,5 @@
 // the configured options and settings for Tutorial
 #define Tutorial_VERSION_MAJOR @Tutorial_VERSION_MAJOR@
 #define Tutorial_VERSION_MINOR @Tutorial_VERSION_MINOR@
+
+// TODO 13: use cmakedefine to define MY_MATH

Help/guide/tutorial/Step2/tutorial.cxx

@@ -5,6 +5,10 @@
 
 #include "TutorialConfig.h"
 
+// TODO 11: Only include MathFunctions if MY_MATH is defined
+
+// TODO 5: Include MathFunctions.h
+
 int main(int argc, char* argv[])
 {
   if (argc < 2) {
@@ -18,6 +22,10 @@ int main(int argc, char* argv[])
   // convert input to double
   const double inputValue = std::stod(argv[1]);
 
+  // TODO 12: Use mysqrt if MY_MATH is defined and sqrt otherwise
+
+  // TODO 6: Replace sqrt with mysqrt
+
   // calculate square root
   const double outputValue = sqrt(inputValue);
   std::cout << "The square root of " << inputValue << " is " << outputValue