fix: clang-tidy errors in benchmarks

Author: lukasberbuer

benchmarks/benchmark_features.cpp

@@ -69,7 +69,7 @@ static void run_default(benchmark::State& state, Func func, Args... args) {
     env.mem_resource = &new_delete_resource;
 
     const auto input = make_random_input(1, state.range(0));
-    for (auto _ : state) {
+    for ([[maybe_unused]] auto _ : state) {
         auto result = func(env, input, args...);
         benchmark::DoNotOptimize(result);
     }
@@ -86,7 +86,7 @@ static void run_cached(benchmark::State& state, Func func, Args... args) {
     env.cache = cache.get();
 
     const auto input = make_random_input(1, state.range(0));
-    for (auto _ : state) {
+    for ([[maybe_unused]] auto _ : state) {
         auto result = func(env, input, args...);
         benchmark::DoNotOptimize(result);
     }
@@ -100,7 +100,7 @@ static void run_monotonic(benchmark::State& state, Func func, Args... args) {
     AllocationCounter new_delete_resource{std::pmr::new_delete_resource()};
 
     const auto input = make_random_input(1, state.range(0));
-    for (auto _ : state) {
+    for ([[maybe_unused]] auto _ : state) {
         state.PauseTiming();
         std::pmr::monotonic_buffer_resource buffer_resource{
             buffer.data(), buffer.size(), &new_delete_resource
@@ -128,7 +128,7 @@ static void run_pool(benchmark::State& state, Func func, Args... args) {
     env.mem_resource = &pool_resource;
 
     const auto input = make_random_input(1, state.range(0));
-    for (auto _ : state) {
+    for ([[maybe_unused]] auto _ : state) {
         auto result = func(env, input, args...);
         benchmark::DoNotOptimize(result);
     }

benchmarks/benchmark_hash.cpp

@@ -9,17 +9,17 @@
 #include "random.hpp"
 
 static void benchmark_sum(benchmark::State& state) {
-    const auto vec = make_random_vector<float>(state.range(), -1.0, 1.0);
-    for (auto _ : state) {
-        auto sum = std::accumulate(vec.begin(), vec.end(), 0.0f);
+    const auto vec = make_random_vector<float>(state.range(), -1.0F, 1.0F);
+    for ([[maybe_unused]] auto _ : state) {
+        auto sum = std::accumulate(vec.begin(), vec.end(), 0.0F);
         benchmark::DoNotOptimize(sum);
     }
     state.SetItemsProcessed(state.iterations() * state.range(0));
 }
 
 static void benchmark_std_hash(benchmark::State& state) {
-    const auto vec = make_random_vector<float>(state.range(), -1.0, 1.0);
-    for (auto _ : state) {
+    const auto vec = make_random_vector<float>(state.range(), -1.0F, 1.0F);
+    for ([[maybe_unused]] auto _ : state) {
         size_t hash = vec.size();
         for (auto value : vec) {
             hash ^= std::hash<float>{}(value);
@@ -31,8 +31,8 @@ static void benchmark_std_hash(benchmark::State& state) {
 
 template <typename F>
 static void benchmark_xxhash(benchmark::State& state, F hash_func) {
-    const auto vec = make_random_vector<float>(state.range(), -1.0, 1.0);
-    for (auto _ : state) {
+    const auto vec = make_random_vector<float>(state.range(), -1.0F, 1.0F);
+    for ([[maybe_unused]] auto _ : state) {
         auto hash = hash_func(vec.data(), vec.size() * sizeof(float), 0 /* seed */);
         benchmark::DoNotOptimize(hash);
     }