#pragma once #include #include // from https://stackoverflow.com/a/8244052 class NullStreambuf : public std::streambuf { char dummyBuffer[64]; protected: virtual int overflow(int c) override final; }; class NullOStream final : private NullStreambuf, public std::ostream { public: NullOStream() : std::ostream(this) {} NullStreambuf *rdbuf() { return this; } virtual void avoidOutOfLineVirtualCompilerWarning(); };