C++20 Module

[VladimirShaleev]

Add support for C++ modules

Added target ipaddress::ipaddress-module

cmake_minimum_required(VERSION 3.28.0)

project(my-project LANGUAGES CXX)

set(CMAKE_CXX_STANDARD 23)

add_subdirectory(third-party/ipaddress)

add_executable(my-project main.cpp)
target_link_libraries(my-project PRIVATE ipaddress::ipaddress-module)
set_target_properties(my-project PROPERTIES CXX_SCAN_FOR_MODULES ON)
set_target_properties(my-project PROPERTIES CXX_EXTENSIONS OFF)

which is enabled by the IPADDRESS_BUILD_MODULE option, which is OFF by default.

Then use the module:

#include <iostream>

import ipaddress;

int main() {
    auto ip = ipaddress::ipv4_address::parse<"127.0.0.1">();
    std::cout << ip << std::endl;
    return 0;
}