Init

.gitignore

@@ -0,0 +1 @@
+build/

bad/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(test)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+include_directories(lib)
+
+file(GLOB_RECURSE SOURCES "lib/*.cpp" "src/*.cpp" "main.cpp")
+
+add_executable(test ${SOURCES})

bad/lib/a.hpp

@@ -0,0 +1,4 @@
+int f()
+{
+    return 2;
+}

bad/src/main.cpp

@@ -0,0 +1,4 @@
+int main()
+{
+    return 0;
+}

bad/src/x.cpp

@@ -0,0 +1,6 @@
+#include "a.hpp"
+
+int g()
+{
+    return f() + 2;
+}

bad/src/y.cpp

@@ -0,0 +1,6 @@
+#include "a.hpp"
+
+int h()
+{
+    return f() + 3;
+}

good/CMakeLists.txt

@@ -0,0 +1,12 @@
+cmake_minimum_required(VERSION 3.16)
+
+project(test)
+
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+
+include_directories(lib)
+
+file(GLOB_RECURSE SOURCES "lib/*.cpp" "src/*.cpp" "main.cpp")
+
+add_executable(test ${SOURCES})

good/lib/a.cpp

@@ -0,0 +1,6 @@
+#include "a.hpp"
+
+int f()
+{
+    return 2;
+}

good/lib/a.hpp

@@ -0,0 +1 @@
+int f();

good/src/main.cpp

@@ -0,0 +1,4 @@
+int main()
+{
+    return 0;
+}

good/src/x.cpp

@@ -0,0 +1,6 @@
+#include "a.hpp"
+
+int g()
+{
+    return f() + 2;
+}

good/src/y.cpp

@@ -0,0 +1,6 @@
+#include "a.hpp"
+
+int h()
+{
+    return f() + 3;
+}