Compile with `g++ -std=c++11 -O2 bench.cpp -o bench`

bench_bool_to_string.cpp

#include <iostream>
#include <chrono>
#include <sstream>

using namespace std;
using namespace chrono;

// Method 1: Using a conditional operator
string bool_to_string_conditional(bool b) {
    return b ? "true" : "false";
}

// Method 2: Using a stringstream
string bool_to_string_stringstream(bool b) {
    stringstream ss;
    ss << boolalpha << b;
    return ss.str();
}

// Method 3: Using to_string function
string bool_to_string_to_string(bool b) {
    return to_string(b);
}

// Method 4: Using computed string indices
string bool_to_string_computed_index(bool b) {
	return string(&"false\0\0\0true"[b<<3], 5-b);
}

int main() {
    // Evaluate conversion time for 10000000 iterations
    const int iterations = 10000000;
    bool b = true;
    string result;
    auto start = high_resolution_clock::now();

    // Method 1: Using a conditional operator
    for (int i = 0; i < iterations; i++) {
        b = !b;
        result = bool_to_string_conditional(b);
    }
    auto end = high_resolution_clock::now();
    auto duration = duration_cast<microseconds>(end - start);
    cout << "Method 1: Using conditional operator -> " << duration.count() << " microseconds." << endl;

    // Method 2: Using a stringstream
    start = high_resolution_clock::now();
    for (int i = 0; i < iterations; i++) {
        b = !b;
        result = bool_to_string_stringstream(b);
    }
    end = high_resolution_clock::now();
    duration = duration_cast<microseconds>(end - start);
    cout << "Method 2: Using stringstream -> " << duration.count() << " microseconds." << endl;

    // Method 3: Using to_string function
    start = high_resolution_clock::now();
    for (int i = 0; i < iterations; i++) {
        b = !b;
        result = bool_to_string_to_string(b);
    }
    end = high_resolution_clock::now();
    duration = duration_cast<microseconds>(end - start);
    cout << "Method 3: Using to_string function -> " << duration.count() << " microseconds." << endl;

   // Method 4: Using computed string indices
   start = high_resolution_clock::now();
   for (int i = 0; i < iterations; i++) {
       b = !b;
       result = bool_to_string_computed_index(b);
   }
   end = high_resolution_clock::now();
   duration = duration_cast<microseconds>(end - start);
   cout << "Method 4: Using computed index -> " << duration.count() << " microseconds." << endl;

    return 0;
}