/usr/include/pdal/util/NullOStream.hpp is in libpdal-dev 1.6.0-1build2.
This file is owned by root:root, with mode 0o644.
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// Copied from http://stackoverflow.com/questions/8243743/is-there-a-null-stdostream-implementation-in-c-or-libraries
#pragma once
#include <iostream>
#include <streambuf>
namespace pdal
{
class NullStreambuf : public std::streambuf
{
char dummyBuffer[64];
protected:
virtual int overflow(int c)
{
setp(dummyBuffer, dummyBuffer + sizeof(dummyBuffer));
return (c == traits_type::eof()) ? '\0' : c;
}
};
class NullOStream : private NullStreambuf, public std::ostream
{
public:
NullOStream() : std::ostream(this)
{}
NullStreambuf* rdbuf() const
{ return const_cast<NullOStream *>(this); }
};
} // namespace
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