The following code example is taken from the book
C++23 - The Complete Guide
by Nicolai M. Josuttis,
Leanpub, 2026
The code is licensed under a
Creative Commons Attribution 4.0 International License.
// raw code
#include <iostream>
#include <exception>
#include <generator>
std::generator<int> coroWithException()
{
std::cout << "\t** coro(): yield 1" << std::endl;
co_yield 1; // SUSPEND with 1
std::cout << "\t** coro(): yield 2" << std::endl;
co_yield 2; // SUSPEND with 2
std::cout << "\t** coro(): THROW" << std::endl;
throw std::runtime_error{"error in coroutine"}; // THROW exception
std::cout << "\t** coro(): not reached" << std::endl;
}