feat: add enum class test

chapters/chapter_02/CMakeLists.txt

@@ -11,7 +11,8 @@ add_library(
   src/type_inference.cpp
   src/variadic_templates.cpp
   src/delegate_constructor.cpp
-  src/inheritance_constructor.cpp)
+  src/inheritance_constructor.cpp
+  src/enum.cpp)
 
 target_compile_features(chapter_02 PUBLIC cxx_std_20)
 

chapters/chapter_02/src/chapter_2_tests.cpp

@@ -1,6 +1,7 @@
 #include "chapter_2_tests.h"
 #include "constexp.h"
 #include "delegate_constructor.h"
+#include "enum.h"
 #include "if_constexpr.h"
 #include "ifswitch.h"
 #include "inheritance_constructor.h"
@@ -25,6 +26,7 @@ std::vector<std::unique_ptr<ChapterTest>> chapter_2_tests() {
   chapter_2_tests.emplace_back(std::make_unique<VariadicTemplates>());
   chapter_2_tests.emplace_back(std::make_unique<DelegateConstructor>());
   chapter_2_tests.emplace_back(std::make_unique<InheritanceConstructor>());
+  chapter_2_tests.emplace_back(std::make_unique<EnumTest>());
 
   return chapter_2_tests;
 }

chapters/chapter_02/src/enum.cpp

@@ -0,0 +1,23 @@
+#include "enum.h"
+#include <iostream>
+#include <ostream>
+
+enum class MyEnum : unsigned int {
+  Variant_1 = 23,
+  Variant_2 = 42,
+  Variant_3 = Variant_2,
+};
+
+std::ostream &operator<<(std::ostream &os, const MyEnum &myEnum) {
+  os << static_cast<std::underlying_type<MyEnum>::type>(myEnum);
+  return os;
+}
+
+void EnumTest::run() {
+
+  auto myEnum_1 = MyEnum::Variant_1;
+  std::cout << "myEnum_1 is " << myEnum_1 << std::endl;
+
+  auto myEnum_2 = MyEnum::Variant_2;
+  std::cout << "myEnum_2 is " << myEnum_2 << std::endl;
+}

chapters/chapter_02/src/enum.h

@@ -0,0 +1,9 @@
+#pragma once
+
+#include "chapter_interface.h"
+
+class EnumTest : public ChapterTest {
+public:
+  virtual void run() override;
+  virtual const char *name() const override { return "Enum test"; }
+};