benchmark.hpp

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// ========================================
// benchmark.hpp - Timing Utility Wrapper
// ========================================
 
#pragma once
 
#include <chrono>
#include <functional>
#include <iostream>
#include <string>

inline void benchmark(const std::string& name, int trials, std::function<int()> func) {
    auto start = std::chrono::high_resolution_clock::now();
 
    int hits = func();
 
    auto end = std::chrono::high_resolution_clock::now();
 
    double piEstimate = 4.0 * hits / trials;
    auto elapsed_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(end - start).count();
 
    std::cout << name << ":\n"
              << "  Trials: " << trials << "\n"
              << "  Hits: " << hits << "\n"
              << "  Estimate: " << piEstimate << "\n"
              << "  Time: " << (elapsed_ns / 1e9) << "s (" << elapsed_ns << " ns)\n";
}