Generator Function Example

generator.cpp

/**
 *  @brief Sample coroutine function which uses recursion for it's
 *  evaluation.
 *
 *  @copyright 2016, Alex Huszagh
 *  @license MIT
 *
 *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 *  OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 *  HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 *  WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 *  FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *  OTHER DEALINGS IN THE SOFTWARE.
 */

#include <co2/generator.hpp>

#include <cstdlib>
#include <stdio.h>
#include <vector>

/**
 *  @brief Random number generator, feeds into another pipeline.
*/
auto random_generator(int count) CO2_BEG(co2::generator<int>, (count))
{
    while (count){
        CO2_YIELD(rand() % 100);
        count -= 1;
    };
} CO2_END


int main(int argc, char* argv[])
{
    for (int random: random_generator(1000)) {
        printf("Random number, %d\n", random);
    }
    return 0;
}