/usr/include/osgDB/fstream is in libopenscenegraph-3.4-dev 3.4.0+dfsg1-4+b3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * OpenSceneGraph Public License for more details.
*/
#ifndef OSGDB_FSTREAM
#define OSGDB_FSTREAM 1
#include <osgDB/Export>
#include <osg/Export>
#include <fstream>
namespace osgDB
{
/**
* Convenience function for fstream open , std::ifstream, and std::ofstream to
* automatically handle UTF-8 to UTF-16 filename conversion. Always use one
* of these classes in any OpenSceneGraph code instead of the STL equivalent.
*/
void OSGDB_EXPORT open(std::fstream& fs, const char* filename,std::ios_base::openmode mode);
class OSGDB_EXPORT ifstream : public std::ifstream
{
public:
    ifstream();
    explicit ifstream(const char* filename,
        std::ios_base::openmode mode = std::ios_base::in);
    ~ifstream();
    void open(const char* filename,
        std::ios_base::openmode mode = std::ios_base::in);
};
class OSGDB_EXPORT ofstream : public std::ofstream
{
public:
    ofstream();
    explicit ofstream(const char* filename,
        std::ios_base::openmode mode = std::ios_base::out);
    ~ofstream();
    void open(const char* filename,
        std::ios_base::openmode mode = std::ios_base::out);
};
}
#endif
 |