Replace NULL with nullptr in all C++ files.

webrtc/modules/audio_processing/transient/file_utils_unittest.cc

 /*
  *  Copyright (c) 2013 The WebRTC 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.
  */
 
@@ skipping 476 matching lines @@
 #define MAYBE_ExpectedErrorReturnValues ExpectedErrorReturnValues
 #endif
 TEST_F(TransientFileUtilsTest, MAYBE_ExpectedErrorReturnValues) {
   std::string test_filename = kTestFileName;
 
   double value;
   std::unique_ptr<int16_t[]> int16_buffer(new int16_t[1]);
   std::unique_ptr<double[]> double_buffer(new double[1]);
   std::unique_ptr<FileWrapper> file(FileWrapper::Create());
 
-  EXPECT_EQ(-1, ConvertByteArrayToDouble(NULL, &value));
-  EXPECT_EQ(-1, ConvertByteArrayToDouble(kPiBytes, NULL));
+  EXPECT_EQ(-1, ConvertByteArrayToDouble(nullptr, &value));
+  EXPECT_EQ(-1, ConvertByteArrayToDouble(kPiBytes, nullptr));
 
-  EXPECT_EQ(-1, ConvertDoubleToByteArray(kPi, NULL));
+  EXPECT_EQ(-1, ConvertDoubleToByteArray(kPi, nullptr));
 
   // Tests with file not opened.
   EXPECT_EQ(0u, ReadInt16BufferFromFile(file.get(), 1, int16_buffer.get()));
   EXPECT_EQ(0u, ReadInt16FromFileToDoubleBuffer(file.get(),
                                                 1,
                                                 double_buffer.get()));
   EXPECT_EQ(0u, ReadDoubleBufferFromFile(file.get(), 1, double_buffer.get()));
   EXPECT_EQ(0u, WriteInt16BufferToFile(file.get(), 1, int16_buffer.get()));
   EXPECT_EQ(0u, WriteDoubleBufferToFile(file.get(), 1, double_buffer.get()));
 
   file->OpenFile(test_filename.c_str(), true);  // Read only.
   ASSERT_TRUE(file->is_open()) << "File could not be opened:\n"
                                << kTestFileName.c_str();
 
-  EXPECT_EQ(0u, ReadInt16BufferFromFile(NULL, 1, int16_buffer.get()));
-  EXPECT_EQ(0u, ReadInt16BufferFromFile(file.get(), 1, NULL));
+  EXPECT_EQ(0u, ReadInt16BufferFromFile(nullptr, 1, int16_buffer.get()));
+  EXPECT_EQ(0u, ReadInt16BufferFromFile(file.get(), 1, nullptr));
   EXPECT_EQ(0u, ReadInt16BufferFromFile(file.get(), 0, int16_buffer.get()));
 
-  EXPECT_EQ(0u, ReadInt16FromFileToDoubleBuffer(NULL, 1, double_buffer.get()));
-  EXPECT_EQ(0u, ReadInt16FromFileToDoubleBuffer(file.get(), 1, NULL));
+  EXPECT_EQ(0u,
+            ReadInt16FromFileToDoubleBuffer(nullptr, 1, double_buffer.get()));
+  EXPECT_EQ(0u, ReadInt16FromFileToDoubleBuffer(file.get(), 1, nullptr));
   EXPECT_EQ(0u, ReadInt16FromFileToDoubleBuffer(file.get(),
                                                 0,
                                                 double_buffer.get()));
 
-  EXPECT_EQ(0u, ReadDoubleBufferFromFile(NULL, 1, double_buffer.get()));
-  EXPECT_EQ(0u, ReadDoubleBufferFromFile(file.get(), 1, NULL));
+  EXPECT_EQ(0u, ReadDoubleBufferFromFile(nullptr, 1, double_buffer.get()));
+  EXPECT_EQ(0u, ReadDoubleBufferFromFile(file.get(), 1, nullptr));
   EXPECT_EQ(0u, ReadDoubleBufferFromFile(file.get(), 0, double_buffer.get()));
 
-  EXPECT_EQ(0u, WriteInt16BufferToFile(NULL, 1, int16_buffer.get()));
-  EXPECT_EQ(0u, WriteInt16BufferToFile(file.get(), 1, NULL));
+  EXPECT_EQ(0u, WriteInt16BufferToFile(nullptr, 1, int16_buffer.get()));
+  EXPECT_EQ(0u, WriteInt16BufferToFile(file.get(), 1, nullptr));
   EXPECT_EQ(0u, WriteInt16BufferToFile(file.get(), 0, int16_buffer.get()));
 
-  EXPECT_EQ(0u, WriteDoubleBufferToFile(NULL, 1, double_buffer.get()));
-  EXPECT_EQ(0u, WriteDoubleBufferToFile(file.get(), 1, NULL));
+  EXPECT_EQ(0u, WriteDoubleBufferToFile(nullptr, 1, double_buffer.get()));
+  EXPECT_EQ(0u, WriteDoubleBufferToFile(file.get(), 1, nullptr));
   EXPECT_EQ(0u, WriteDoubleBufferToFile(file.get(), 0, double_buffer.get()));
 }
 
 }  // namespace webrtc