История изменений

Исправление ~~vertexua~~, 27.10.20 21:07 (текущая версия) :

Я царь

Возрадуйся, тут C++ в Rust подвезли

[package]
name = "capp1"
version = "0.1.0"
edition = "2018"

[dependencies]
cpp="0.5"

[build-dependencies]
cpp_build = "0.5"

build.rs

fn main() {
    cpp_build::build("src/main.rs");
}

main.rs

use cpp::cpp;

cpp! {{
    #include <iostream>
}}

fn sum(a: i32, b: i32) -> i32 {
    unsafe {
        return cpp!([a as "int32_t", b as "int32_t"] -> i32 as "int32_t" {
            const auto res = a + b;
            std::cout << "Computing sum "
                << a << "+" << b << "=" << res
                << "..." << std::endl;
            return res;
        });
    }
}

fn main() {
    let a = 10;
    let b = 20;
    let res = sum(a, b);
    println!("{} + {} = {}", a, b, res);
}

Исходная версия ~~vertexua~~, 27.10.20 21:05:

Я царь

Возрадуйся, тут C++ в Rust подвезли

use cpp::cpp;

cpp! {{
    #include <iostream>
}}

fn sum(a: i32, b: i32) -> i32 {
    unsafe {
        return cpp!([a as "int32_t", b as "int32_t"] -> i32 as "int32_t" {
            const auto res = a + b;
            std::cout << "Computing sum "
                << a << "+" << b << "=" << res
                << "..." << std::endl;
            return res;
        });
    }
}

fn main() {
    let a = 10;
    let b = 20;
    let res = sum(a, b);
    println!("{} + {} = {}", a, b, res);
}