fix for ubsan on unittest.h fastrand()

unit_test/unit_test.cc

 /*
  *  Copyright 2011 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "../unit_test/unit_test.h"
 
 #include <stdlib.h>  // For getenv()
 
 #include <cstring>
 
 #include "gflags/gflags.h"
 
 // Change this to 1000 for benchmarking.
 // TODO(fbarchard): Add command line parsing to pass this as option.
 #define BENCHMARK_ITERATIONS 1
 
-int fastrand_seed = 0xfb;
+unsigned int fastrand_seed = 0xfb;
 
 DEFINE_int32(libyuv_width, 0, "width of test image.");
 DEFINE_int32(libyuv_height, 0, "height of test image.");
 DEFINE_int32(libyuv_repeat, 0, "number of times to repeat test.");
 DEFINE_int32(libyuv_flags, 0, "cpu flags for reference code. 0 = C -1 = asm");
 DEFINE_int32(libyuv_cpu_info, -1,
              "cpu flags for benchmark code. -1 = SIMD, 1 = C");
 
 // For quicker unittests, default is 128 x 72.  But when benchmarking,
 // default to 720p.  Allow size to specify.
@@ skipping 84 matching lines @@
     disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_flags) {
     disable_cpu_flags_ = FLAGS_libyuv_flags;
   }
   const char* cpu_info = getenv("LIBYUV_CPU_INFO");
   if (cpu_info) {
     benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_cpu_info) {
-   benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
+    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
   }
   benchmark_pixels_div256_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 255.0) / 256.0);
   benchmark_pixels_div1280_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 1279.0) / 1280.0);
 }
@@ skipping 31 matching lines @@
     disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_flags) {
     disable_cpu_flags_ = FLAGS_libyuv_flags;
   }
   const char* cpu_info = getenv("LIBYUV_CPU_INFO");
   if (cpu_info) {
     benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_cpu_info) {
-   benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
+    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
   }
   benchmark_pixels_div256_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 255.0) / 256.0);
   benchmark_pixels_div1280_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 1279.0) / 1280.0);
 }
@@ skipping 31 matching lines @@
     disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_flags) {
     disable_cpu_flags_ = FLAGS_libyuv_flags;
   }
   const char* cpu_info = getenv("LIBYUV_CPU_INFO");
   if (cpu_info) {
     benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_cpu_info) {
-   benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
+    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
   }
   benchmark_pixels_div256_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 255.0) / 256.0);
   benchmark_pixels_div1280_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 1279.0) / 1280.0);
 }
@@ skipping 31 matching lines @@
     disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_flags) {
     disable_cpu_flags_ = FLAGS_libyuv_flags;
   }
   const char* cpu_info = getenv("LIBYUV_CPU_INFO");
   if (cpu_info) {
     benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_cpu_info) {
-   benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
+    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
   }
   benchmark_pixels_div256_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 255.0) / 256.0);
   benchmark_pixels_div1280_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 1279.0) / 1280.0);
 }
@@ skipping 31 matching lines @@
     disable_cpu_flags_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_flags) {
     disable_cpu_flags_ = FLAGS_libyuv_flags;
   }
   const char* cpu_info = getenv("LIBYUV_CPU_INFO");
   if (cpu_info) {
     benchmark_cpu_info_ = atoi(cpu_flags);  // NOLINT
   }
   if (FLAGS_libyuv_cpu_info) {
-   benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
+    benchmark_cpu_info_ = FLAGS_libyuv_cpu_info;
   }
   benchmark_pixels_div256_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 255.0) / 256.0);
   benchmark_pixels_div1280_ = static_cast<int>((
       static_cast<double>(Abs(benchmark_width_)) *
       static_cast<double>(Abs(benchmark_height_)) *
       static_cast<double>(benchmark_iterations_)  + 1279.0) / 1280.0);
 }
 
 int main(int argc, char** argv) {
   ::testing::InitGoogleTest(&argc, argv);
   // AllowCommandLineParsing allows us to ignore flags passed on to us by
   // Chromium build bots without having to explicitly disable them.
   google::AllowCommandLineReparsing();
   google::ParseCommandLineFlags(&argc, &argv, true);
   return RUN_ALL_TESTS();
 }