Bitset Bench

bitset.cpp

#include <bitset>
#include <benchmark/benchmark.h>

const char bitText[] =
    "0100010100111101100001010100101010011101011110001000101101101001"
    "0110011011101100001101001111111101111011101000111000100101011110"
    "0001010000010000111001101001101001110111000011100101011100101010"
    "0000010110110110110010001111011000100000011000000000001010000011"
    "1101010111000001011011010111010100001110110111111100110000101111"
    "1010100100000011011000001011110000000111111001000010010100110000"
    "1110011000101010110110011110101110101010000110101011110101010001"
    "0100010010111100111100111001101101110111000100100010001110101000"
    "1101111100111111110101101000000100111101101100100001010101111010"
    "1100011000101101010010010110010010011000101011111100011110011101"
    "1010101011101110101010011111101101101100101000111100000001001110"
    "0100011001010101010011100100001100011011111010101011101110110011"
    "0101110110111000111010110011001001110101011101000101100100111001"
    "1111100100001001111110010110110101110111101101010110011001010010"
    "1001010101110100000100011010010110010111010100110111110010111100"
    "1100000010110100101100111110111010000001100000010011110011011001"
    "1000101100101010001101010111011101101001100110000001010010001011"
    "0001010000001001101010010110001100011001010000010100100110011100"
    "1100010001110111100000011111110010010100000000011101110101000010"
    "0011100000111110000101000011010001011101010001100001001110011110"
    "1001010100111010110101110000110110101011011000110001001101110100"
    "0010011000101110100110001011110000101110110110100101010010110110"
    "0101111110101101110100000000110110000100101010011000110010110000"
    "0010001001111010100011100000010000110010000010010101101101111111"
    "1010010101000011100101000010000001010100100001110011011010000010"
    "1100010000101010111111110110110011011010101110100111111111011100"
    "1111000100000101111101100000001100011101111100011011110000111100"
    "0101101100111010111100010111110010111011011000010111100010000010"
    "0000001101011101100111111010011000001000111010101101001110100001"
    "1100001001010010110110000010110110100101111111011110011110100101"
    "0001101011001010101001110011011110100001111101111111010000100111"
    "0010111000001100011111111000011101000100110101101000101111100010";

template<size_t bits>
void test_bitset(benchmark::State& state) {
    for (auto&& _ : state) {
        (void)_;
        std::bitset<bits> madeBits(bitText, bits);
        benchmark::DoNotOptimize(madeBits);
    }
}

BENCHMARK_TEMPLATE1(test_bitset, 8);
BENCHMARK_TEMPLATE1(test_bitset, 16);
BENCHMARK_TEMPLATE1(test_bitset, 32);
BENCHMARK_TEMPLATE1(test_bitset, 64);
BENCHMARK_TEMPLATE1(test_bitset, 128);
BENCHMARK_TEMPLATE1(test_bitset, 256);
BENCHMARK_TEMPLATE1(test_bitset, 512);
BENCHMARK_TEMPLATE1(test_bitset, 2048);

BENCHMARK_MAIN();