From f1bd1b74e4b79c53ab7ab6b6f1a0d008ff6034e6 Mon Sep 17 00:00:00 2001
From: Michael Mandl <mandlm@molez.net>
Date: Sun, 22 Oct 2023 21:43:17 +0200
Subject: [PATCH] feat(wip): if constexpr

---
 chapters/chapter_02/CMakeLists.txt         | 10 ++++++++--
 chapters/chapter_02/include/if_constexpr.h |  9 +++++++++
 chapters/chapter_02/src/if_constexpr.cpp   |  6 ++++++
 src/main.cpp                               |  2 ++
 4 files changed, 25 insertions(+), 2 deletions(-)
 create mode 100644 chapters/chapter_02/include/if_constexpr.h
 create mode 100644 chapters/chapter_02/src/if_constexpr.cpp

diff --git a/chapters/chapter_02/CMakeLists.txt b/chapters/chapter_02/CMakeLists.txt
index 2bc50d2..6236fdc 100644
--- a/chapters/chapter_02/CMakeLists.txt
+++ b/chapters/chapter_02/CMakeLists.txt
@@ -1,6 +1,12 @@
 add_library(
-  chapter_02 src/initlist.cpp src/null.cpp src/constexp.cpp src/ifswitch.cpp
-             src/structured_binding.cpp src/type_inference.cpp)
+  chapter_02
+  src/initlist.cpp
+  src/null.cpp
+  src/constexp.cpp
+  src/ifswitch.cpp
+  src/structured_binding.cpp
+  src/type_inference.cpp
+  src/if_constexpr.cpp)
 
 target_compile_features(chapter_02 PUBLIC cxx_std_20)
 
diff --git a/chapters/chapter_02/include/if_constexpr.h b/chapters/chapter_02/include/if_constexpr.h
new file mode 100644
index 0000000..f696d16
--- /dev/null
+++ b/chapters/chapter_02/include/if_constexpr.h
@@ -0,0 +1,9 @@
+#pragma once
+
+#include "chapter_interface.h"
+
+class IfConstexprTest : public ChapterTest {
+public:
+  virtual void run() override;
+  virtual const char *name() const override { return "If constexpr test"; }
+};
diff --git a/chapters/chapter_02/src/if_constexpr.cpp b/chapters/chapter_02/src/if_constexpr.cpp
new file mode 100644
index 0000000..1bfa840
--- /dev/null
+++ b/chapters/chapter_02/src/if_constexpr.cpp
@@ -0,0 +1,6 @@
+#include <iostream>
+#include <type_traits>
+
+#include "if_constexpr.h"
+
+void IfConstexprTest::run() {}
diff --git a/src/main.cpp b/src/main.cpp
index 94d49ce..4a567c3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -4,6 +4,7 @@
 #include <vector>
 
 #include "constexp.h"
+#include "if_constexpr.h"
 #include "ifswitch.h"
 #include "initlist.h"
 #include "null.h"
@@ -24,6 +25,7 @@ int main(int argc, char **argv) {
   chapter_2_tests.emplace_back(std::make_unique<InitListTest>());
   chapter_2_tests.emplace_back(std::make_unique<StructuredBindingTest>());
   chapter_2_tests.emplace_back(std::make_unique<TypeInferenceTest>());
+  chapter_2_tests.emplace_back(std::make_unique<IfConstexprTest>());
 
   for (auto &test : chapter_2_tests) {
     std::cout << "\n" << test->name() << ":" << std::endl;