/usr/include/trilinos/Teuchos_FILEstream.hpp is in libtrilinos-teuchos-dev 12.4.2-2.
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#ifndef TEUCHOS_FILESTREAM_H
#define TEUCHOS_FILESTREAM_H
//! \file Teuchos_FILEstream.hpp
#include <streambuf>
namespace Teuchos
{
//! Teuchos::FILEstream: Combined C FILE and C++ stream
/*! Teuchos::FILEstream is a class that defines an object that is
simultaneously a C FILE object and a C++ stream object. The
utility of this class is in connecting existing C++ code that
uses streams and C code that uses FILEs. An important example
of this situation is the python wrappers for Trilinos packages.
Trilinos is of course written primarily in C++, but the python
wrappers must interface to the python C API. Wrappers for
Trilinos methods or operators that expect a stream can be given
a Teuchos::FILEstream, which then behaves as a FILE within the
python C API. This is a low-level object that should not be
needed at the user level.
*/
class FILEstream : public std::streambuf {
public:
//! Constructor
/*! The only constructor for Teuchos:FILEstream, and it requires a
pointer to a C FILE struct.
*/
FILEstream(std::FILE* file): self_file(file) {}
protected:
std::streambuf::int_type overflow(std::streambuf::int_type c) {
return std::fputc(c, self_file) == EOF?
std::streambuf::traits_type::eof(): c;
}
FILE* self_file;
};
}
#endif
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