#include "benchmark/benchmark.h"
#include "common/StringUtils.hh"

using benchmark::Counter;

static void BM_StringToNumeric(benchmark::State& state)
{
  int val;
  std::string s = std::to_string(state.range(0));
  using namespace eos::common;

  // Since the call is very small, do a few cycles to avoid jitters
  for (auto _ : state) {
    for (int i = 0; i < 100; ++i) {
      benchmark::DoNotOptimize(StringToNumeric(s, val));
    }
  }

  state.counters["frequency"] = Counter(100 * state.iterations(),
                                        benchmark::Counter::kIsRate);
}


static void BM_atoi(benchmark::State& state)
{
  int val;
  std::string s = std::to_string(state.range(0));

  for (auto _ : state) {
    for (int i = 0; i < 100; ++i) {
      benchmark::DoNotOptimize(val = atoi(s.c_str()));
    }
  }

  state.counters["frequency"] = Counter(100 * state.iterations(),
                                        benchmark::Counter::kIsRate);
}

int64_t start = 8;
int64_t end = 1UL << 24;
BENCHMARK(BM_StringToNumeric)->Range(start, end);
BENCHMARK(BM_atoi)->Range(start, end);