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///////////////////////////////////////////////////////////////////////////
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// Copyright (c) 2004, Industrial Light & Magic, a division of Lucas
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// All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.67
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///////////////////////////////////////////////////////////////////////////
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//-----------------------------------------------------------------------------
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// Low-level file input and output for OpenEXR
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// based on C++ standard iostreams.
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//-----------------------------------------------------------------------------
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checkError (istream &is, streamsize expected = 0)
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if (is.gcount() < expected)
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THROW (Iex::InputExc, "Early end of file: read " << is.gcount()
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<< " out of " << expected << " requested bytes.");
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checkError (ostream &os)
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throw Iex::ErrnoExc ("File output failed.");
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StdIFStream::StdIFStream (const char fileName[]):
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_is (new ifstream (fileName, ios_base::binary)),
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Iex::throwErrnoExc();
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StdIFStream::StdIFStream (ifstream &is, const char fileName[]):
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_deleteStream (false)
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StdIFStream::~StdIFStream ()
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StdIFStream::read (char c[/*n*/], int n)
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throw Iex::InputExc ("Unexpected end of file.");
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return checkError (*_is, n);
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StdIFStream::tellg ()
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return std::streamoff (_is->tellg());
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StdIFStream::seekg (Int64 pos)
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StdIFStream::clear ()
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StdOFStream::StdOFStream (const char fileName[]):
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_os (new ofstream (fileName, ios_base::binary)),
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Iex::throwErrnoExc();
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StdOFStream::StdOFStream (ofstream &os, const char fileName[]):
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_deleteStream (false)
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StdOFStream::~StdOFStream ()
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StdOFStream::write (const char c[/*n*/], int n)
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StdOFStream::tellp ()
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return std::streamoff (_os->tellp());
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StdOFStream::seekp (Int64 pos)
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StdOSStream::StdOSStream (): OStream ("(string)")
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StdOSStream::write (const char c[/*n*/], int n)
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StdOSStream::tellp ()
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return std::streamoff (_os.tellp());
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StdOSStream::seekp (Int64 pos)