nulloutstream.hpp

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#ifndef MLPACK_CORE_UTIL_NULLOUTSTREAM_HPP
#define MLPACK_CORE_UTIL_NULLOUTSTREAM_HPP

#include <iostream>
#include <streambuf>
#include <string>

namespace mlpack {
namespace util {

class NullOutStream
{
 public:
  NullOutStream() { }

  NullOutStream(const NullOutStream& /* other */) { }

  NullOutStream& operator<<(bool) { return *this; }
  NullOutStream& operator<<(short) { return *this; }
  NullOutStream& operator<<(unsigned short) { return *this; }
  NullOutStream& operator<<(int) { return *this; }
  NullOutStream& operator<<(unsigned int) { return *this; }
  NullOutStream& operator<<(long) { return *this; }
  NullOutStream& operator<<(unsigned long) { return *this; }
  NullOutStream& operator<<(float) { return *this; }
  NullOutStream& operator<<(double) { return *this; }
  NullOutStream& operator<<(long double) { return *this; }
  NullOutStream& operator<<(void*) { return *this; }
  NullOutStream& operator<<(const char*) { return *this; }
  NullOutStream& operator<<(std::string&) { return *this; }
  NullOutStream& operator<<(std::streambuf*) { return *this; }
  NullOutStream& operator<<(std::ostream& (*) (std::ostream&)) { return *this; }
  NullOutStream& operator<<(std::ios& (*) (std::ios&)) { return *this; }
  NullOutStream& operator<<(std::ios_base& (*) (std::ios_base&))
  { return *this; }

  template<typename T>
  NullOutStream& operator<<(const T&) { return *this; }
};

} // namespace util
} // namespace mlpack

#endif