feat(wip): if constexpr

.gitignore

@@ -1,2 +1,3 @@
-/build
+/.build
 /.cache
+/bin

.pre-commit-config.yaml

@@ -21,7 +21,7 @@ repos:
     hooks:
       - id: clang-format
       - id: clang-tidy
-        args: [-p=build]
+        args: [-p=.build]
 
   - repo: https://github.com/cheshirekow/cmake-format-precommit
     rev: v0.6.13

CMakeLists.txt

@@ -31,6 +31,12 @@ target_include_directories(
 
 target_link_libraries(book_exercises PRIVATE chapter_02)
 
+set_target_properties(
+  book_exercises
+  PROPERTIES ARCHIVE_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin"
+             RUNTIME_OUTPUT_DIRECTORY "${PROJECT_SOURCE_DIR}/bin")
+
 if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
   add_subdirectory(tests)
 endif()

bootstrap.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env sh
 
-cmake -S . -B build -G Ninja -D CMAKE_EXPORT_COMPILE_COMMANDS=ON
+cmake -S . -B .build -G Ninja -D CMAKE_EXPORT_COMPILE_COMMANDS=ON

build.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env sh 
 
-cmake --build build 
+cmake --build .build 

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
+  chapter_02
-             src/structured_binding.cpp src/type_inference.cpp)
+  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)
 

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"; }
+};

chapters/chapter_02/src/if_constexpr.cpp

@@ -0,0 +1,6 @@
+#include <iostream>
+#include <type_traits>
+
+#include "if_constexpr.h"
+
+void IfConstexprTest::run() {}

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;

test.sh

@@ -1,3 +1,3 @@
 #!/usr/bin/env sh 
 
-cmake --build build && cmake --build build --target test 
+cmake --build .build && cmake --build .build --target test