Various ClangTidy-inspired fixes.

PiperOrigin-RevId: 196556727

4 files changed, 26 insertions, 29 deletions

diff --git a/tensorflow/contrib/lite/examples/label_image/label_image.cc b/tensorflow/contrib/lite/examples/label_image/label_image.cc
index 456c5c6dc7..966fcd2a31 100644
--- a/tensorflow/contrib/lite/examples/label_image/label_image.cc
+++ b/tensorflow/contrib/lite/examples/label_image/label_image.cc
@@ -77,14 +77,13 @@ void PrintProfilingInfo(const profiling::ProfileEvent* e, uint32_t op_index,
   // time (ms) , Node xxx, OpCode xxx, symblic name
   //      5.352, Node   5, OpCode   4, DEPTHWISE_CONV_2D
 
-
   LOG(INFO) << std::fixed << std::setw(10) << std::setprecision(3)
             << (e->end_timestamp_us - e->begin_timestamp_us) / 1000.0
             << ", Node " << std::setw(3) << std::setprecision(3) << op_index
             << ", OpCode " << std::setw(3) << std::setprecision(3)
             << registration.builtin_code << ", "
             << EnumNameBuiltinOperator(
-                   (BuiltinOperator)registration.builtin_code)
+                   static_cast<BuiltinOperator>(registration.builtin_code))
             << "\n";
 }
 
@@ -190,13 +189,13 @@ void RunInference(Settings* s) {
   if (s->profiling) profiler->StartProfiling();
 
   struct timeval start_time, stop_time;
-  gettimeofday(&start_time, NULL);
+  gettimeofday(&start_time, nullptr);
   for (int i = 0; i < s->loop_count; i++) {
     if (interpreter->Invoke() != kTfLiteOk) {
       LOG(FATAL) << "Failed to invoke tflite!\n";
     }
   }
-  gettimeofday(&stop_time, NULL);
+  gettimeofday(&stop_time, nullptr);
   LOG(INFO) << "invoked \n";
   LOG(INFO) << "average time: "
             << (get_us(stop_time) - get_us(start_time)) / (s->loop_count * 1000)
@@ -271,17 +270,17 @@ int Main(int argc, char** argv) {
   int c;
   while (1) {
     static struct option long_options[] = {
-        {"accelerated", required_argument, 0, 'a'},
-        {"count", required_argument, 0, 'c'},
-        {"verbose", required_argument, 0, 'v'},
-        {"image", required_argument, 0, 'i'},
-        {"labels", required_argument, 0, 'l'},
-        {"tflite_model", required_argument, 0, 'm'},
-        {"profiling", required_argument, 0, 'p'},
-        {"threads", required_argument, 0, 't'},
-        {"input_mean", required_argument, 0, 'b'},
-        {"input_std", required_argument, 0, 's'},
-        {0, 0, 0, 0}};
+        {"accelerated", required_argument, nullptr, 'a'},
+        {"count", required_argument, nullptr, 'c'},
+        {"verbose", required_argument, nullptr, 'v'},
+        {"image", required_argument, nullptr, 'i'},
+        {"labels", required_argument, nullptr, 'l'},
+        {"tflite_model", required_argument, nullptr, 'm'},
+        {"profiling", required_argument, nullptr, 'p'},
+        {"threads", required_argument, nullptr, 't'},
+        {"input_mean", required_argument, nullptr, 'b'},
+        {"input_std", required_argument, nullptr, 's'},
+        {nullptr, 0, nullptr, 0}};
 
     /* getopt_long stores the option index here. */
     int option_index = 0;
@@ -294,15 +293,14 @@ int Main(int argc, char** argv) {
 
     switch (c) {
       case 'a':
-        s.accel = strtol(  // NOLINT(runtime/deprecated_fn)
-            optarg, (char**)NULL, 10);
+        s.accel = strtol(optarg, nullptr, 10);  // NOLINT(runtime/deprecated_fn)
         break;
       case 'b':
-        s.input_mean = strtod(optarg, NULL);
+        s.input_mean = strtod(optarg, nullptr);
         break;
       case 'c':
-        s.loop_count = strtol(  // NOLINT(runtime/deprecated_fn)
-            optarg, (char**)NULL, 10);
+        s.loop_count =
+            strtol(optarg, nullptr, 10);  // NOLINT(runtime/deprecated_fn)
         break;
       case 'i':
         s.input_bmp_name = optarg;
@@ -314,19 +312,19 @@ int Main(int argc, char** argv) {
         s.model_name = optarg;
         break;
       case 'p':
-        s.profiling = strtol(  // NOLINT(runtime/deprecated_fn)
-            optarg, (char**)NULL, 10);
+        s.profiling =
+            strtol(optarg, nullptr, 10);  // NOLINT(runtime/deprecated_fn)
         break;
       case 's':
-        s.input_std = strtod(optarg, NULL);
+        s.input_std = strtod(optarg, nullptr);
         break;
       case 't':
         s.number_of_threads = strtol(  // NOLINT(runtime/deprecated_fn)
-            optarg, (char**)NULL, 10);
+            optarg, nullptr, 10);
         break;
       case 'v':
-        s.verbose = strtol(  // NOLINT(runtime/deprecated_fn)
-            optarg, (char**)NULL, 10);
+        s.verbose =
+            strtol(optarg, nullptr, 10);  // NOLINT(runtime/deprecated_fn)
         break;
       case 'h':
       case '?':
diff --git a/tensorflow/contrib/lite/kernels/kernel_util_test.cc b/tensorflow/contrib/lite/kernels/kernel_util_test.cc
index c65b68970f..bf6f249acc 100644
--- a/tensorflow/contrib/lite/kernels/kernel_util_test.cc
+++ b/tensorflow/contrib/lite/kernels/kernel_util_test.cc
@@ -33,7 +33,7 @@ class KernelUtilTest : public ::testing::Test {
     tensor1_.allocation_type = kTfLiteMmapRo;
     tensor2_.allocation_type = kTfLiteMmapRo;
   }
-  ~KernelUtilTest() {
+  ~KernelUtilTest() override {
     TfLiteTensorFree(&tensor1_);
     TfLiteTensorFree(&tensor2_);
   }
diff --git a/tensorflow/contrib/lite/toco/tooling_util.cc b/tensorflow/contrib/lite/toco/tooling_util.cc
index a789b5c95b..1e6314f2dc 100644
--- a/tensorflow/contrib/lite/toco/tooling_util.cc
+++ b/tensorflow/contrib/lite/toco/tooling_util.cc
@@ -987,7 +987,7 @@ void FixOperatorOrdering(Model* model) {
     for (auto i : remaining) {
       bool can_insert = true;
       auto& op = old_operators[i];
-      CHECK(op.get());
+      CHECK(op);
       for (const auto& input : op->inputs) {
         if (!IsConstantParameterArray(*model, input) &&
             !arrays_behind_us.count(input)) {
diff --git a/tensorflow/contrib/lite/tools/verifier_test.cc b/tensorflow/contrib/lite/tools/verifier_test.cc
index 03b93afe3e..8a10e6848a 100644
--- a/tensorflow/contrib/lite/tools/verifier_test.cc
+++ b/tensorflow/contrib/lite/tools/verifier_test.cc
@@ -31,7 +31,6 @@ namespace tflite {
 
 using flatbuffers::FlatBufferBuilder;
 using flatbuffers::Offset;
-using flatbuffers::Vector;
 
 // Build single subgraph model.
 class TfLiteFlatbufferModelBuilder {