[C++] Fix warnings.

Author: mjpt777

sbe-tool/src/main/cpp/otf/IrDecoder.h

@@ -48,8 +48,7 @@ namespace sbe { namespace otf {
 class IrDecoder
 {
 public:
- IrDecoder() :
- m_length(0)
+ IrDecoder()
  {
  }
 
@@ -142,7 +141,7 @@ class IrDecoder
  // OS specifics
  static long long getFileSize(const char *filename)
  {
- struct stat fileStat;
+ struct stat fileStat{};
 
  if (::stat(filename, &fileStat) != 0)
  {
@@ -165,7 +164,7 @@ class IrDecoder
  int fd = fileno(fptr);
  while (remaining > 0)
  {
- unsigned int bytes = static_cast<unsigned int>(4098 < remaining ? 4098 : remaining);
+ auto bytes = static_cast<unsigned int>(4098 < remaining ? 4098 : remaining);
  long long sz = ::read(fd, buffer + (length - remaining), bytes);
  remaining -= sz;
  if (sz < 0)
@@ -183,8 +182,8 @@ class IrDecoder
  std::shared_ptr<std::vector<Token>> m_headerTokens;
  std::vector<std::shared_ptr<std::vector<Token>>> m_messages;
  std::unique_ptr<char[]> m_buffer;
- std::uint64_t m_length;
- int m_id;
+ std::uint64_t m_length = 0;
+ int m_id = 0;
 
  int decodeIr()
  {
@@ -232,10 +231,10 @@ class IrDecoder
  tokenCodec.wrapForDecode(
  m_buffer.get(), offset, tokenCodec.sbeBlockLength(), tokenCodec.sbeSchemaVersion(), m_length);
 
- Signal signal = static_cast<Signal>(tokenCodec.signal());
- PrimitiveType type = static_cast<PrimitiveType>(tokenCodec.primitiveType());
- Presence presence = static_cast<Presence>(tokenCodec.presence());
- ByteOrder byteOrder = static_cast<ByteOrder>(tokenCodec.byteOrder());
+ auto signal = static_cast<Signal>(tokenCodec.signal());
+ auto type = static_cast<PrimitiveType>(tokenCodec.primitiveType());
+ auto presence = static_cast<Presence>(tokenCodec.presence());
+ auto byteOrder = static_cast<ByteOrder>(tokenCodec.byteOrder());
  std::int32_t tokenOffset = tokenCodec.tokenOffset();
  std::int32_t tokenSize = tokenCodec.tokenSize();
  std::int32_t id = tokenCodec.fieldId();