Update to c++23

compile_commands.json

@@ -2,6 +2,7 @@
   {
     "arguments": [
       "/run/current-system/sw/bin/clang++",
+      "-std=c++23",
       "-resource-dir",
       "/nix/store/k2s6xfca52n25yb8b6f58i87kszp3m7g-clang-wrapper-21.1.2/resource-root",
       "-idirafter",

main.cpp

@@ -1,5 +1,6 @@
 #include <iostream>
+#include <print>
 
 int main() {
-	std::cout << "Hello, world!" << std::endl;
+	std::println("Hello, world!");
 }

run.sh

@@ -2,6 +2,6 @@
 
 rm a.out
 
-clang++ main.cpp
+clang++ -std=c++23 main.cpp
 
 ./a.out