Excercise 2 - Step 1

Signed-off-by: Nigel <nigelbarink@hotmail.com>

.gitignore

@@ -0,0 +1 @@
+*_build/

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

README.md

@@ -0,0 +1,15 @@
+# CMake Tutorial
+
+
+### Reasoning
+Cmake is too popular to ignore.
+Many crossplatform projects written in C and C++ use cmake as their buildtool of choice.
+As this is the case I feel I need to integrate and become more comfortable with CMake myself.
+
+[cmake.org tutorial](https://cmake.org/cmake/help/latest/guide/tutorial/A%20Basic%20Starting%20Point.html)
+
+### What is in this repository
+This directory contains source code examples for the CMake Tutorial.
+Each step has its own subdirectory containing code that may be used as a
+starting point. The tutorial examples are progressive so that each step
+provides the complete solution for the previous step.

README.txt

@@ -1,4 +0,0 @@
-This directory contains source code examples for the CMake Tutorial.
-Each step has its own subdirectory containing code that may be used as a
-starting point. The tutorial examples are progressive so that each step
-provides the complete solution for the previous step.

Step1/CMakeLists.txt

@@ -1,16 +1,14 @@
-# TODO 1: Set the minimum required version of CMake to be 3.10
-
-# TODO 2: Create a project named Tutorial
-
+cmake_minimum_required(VERSION 3.10)
+project(Tutorial)
 # TODO 7: Set the project version number as 1.0 in the above project command
 
 # TODO 6: Set the variable CMAKE_CXX_STANDARD to 11
 #         and the variable CMAKE_CXX_STANDARD_REQUIRED to True
+set(CMAKE_CXX_STANDARD 11)
+set(CMAKE_CXX_STANDARD_REQUIRED True)
 
 # TODO 8: Use configure_file to configure and copy TutorialConfig.h.in to
 #         TutorialConfig.h
 
-# TODO 3: Add an executable called Tutorial to the project
-# Hint: Be sure to specify the source file as tutorial.cxx
-
+add_executable(Tutorial tutorial.cxx)
 # TODO 9: Use target_include_directories to include ${PROJECT_BINARY_DIR}

Step1/tutorial.cxx

@@ -1,6 +1,6 @@
 // A simple program that computes the square root of a number
 #include <cmath>
-#include <cstdlib> // TODO 5: Remove this line
+
 #include <iostream>
 #include <string>
 
@@ -16,8 +16,7 @@ int main(int argc, char* argv[])
   }
 
   // convert input to double
-  // TODO 4: Replace atof(argv[1]) with std::stod(argv[1])
-  const double inputValue = atof(argv[1]);
+  const double inputValue = std::stod(argv[1]);
 
   // calculate square root
   const double outputValue = sqrt(inputValue);