Simple cmake example with working ccls

src/HelloWorld.cpp

@@ -0,0 +1,6 @@
+#include "HelloWorld.h"
+#include <iostream>
+
+void HelloWorld::printMessage(const std::string &message) {
+  std::cout << message << std::endl;
+}

src/main.cpp

@@ -0,0 +1,7 @@
+#include "HelloWorld.h"
+
+int main() {
+  HelloWorld hello;
+  hello.printMessage("Hello, World!");
+  return 0;
+}