I'm running Ubuntu 24.04.2 LTS. g++ is not finding header file. #include give a fatal error: print: No such file or directory
3 | #include <print>
| ^~~~~~~
compilation terminated.
I've used:
g++ -I. -std=c++23 -std=gnu++23 *.cpp
I've tried -std=c++23 and -std=gnu++23 alone as compiler arguments.
g++ --version says I have g++ 13.3.0
gcc --version says I have gcc 13.3.0
I've tried sudo apt remove g++23 and then sudo apt update and then sudo apt install build-essential.
sudo apt-cache search g++23 gives me nothing
sudo apt-cache search g++14 gives me clang-14
sudo apt-cache search g++17 gives me clang-17
sudo apt-cache search g++20 gives me some java and python file but no g++ or clang files.
I've event tried sudo apt install g++23 and even sudo apt-get install --reinstall cpp-23
From / I've tried sudo find . -name "print" -type f no files found.
Nothing above has worked.
Here is my simple Cpp23HelloWorld.cpp program
#include <iostream>
#include <format>
#include <string>
#include <print>
using std::print;
int main(void)
{
print("C++23 Hello World\n");
return 0;
}
Note the unneeded includes just a sanity check that the compiler could find them.
What do I need to do to be able to compile a C++23 program? Or at the least be able to use #include in my program?
Per cppreferences's compiler support page, gcc 14 and higher support <print>.
You have gcc 13.3 so it does not support that part of C++23.