generatorSentinel.cpp

// This example shows usage of the range generator with a custom sentinel.
 
#include <iostream>
#include <z/all.hpp>
 
using z::core::range;
using z::core::sentinel;
 
int main() {
    std::cout << "Generating even numbers until they're divisible by 20" << std::endl;
 
    // Generate numbers until the next number would be divisible by 20 (ignoring zero).
    sentinel untilDivisibleBy20([](long value, long stepSize) -> bool { return value && value % 20 == 0; });
 
    auto even = range(0, untilDivisibleBy20, 2);
    for (auto i : even) {
        std::cout << i << std::endl;
    }
}