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Open Source Computer Vision Library
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148 lines
4.3 KiB
148 lines
4.3 KiB
/////////////////////////////////////////////////////////////////////////// |
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// |
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// Copyright (c) 2002, Industrial Light & Magic, a division of Lucas |
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// Digital Ltd. LLC |
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// |
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// All rights reserved. |
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// |
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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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// met: |
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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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// distribution. |
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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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// |
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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. |
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// |
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/////////////////////////////////////////////////////////////////////////// |
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#ifndef INCLUDED_IEXMACROS_H |
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#define INCLUDED_IEXMACROS_H |
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//-------------------------------------------------------------------- |
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// |
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// Macros which make throwing exceptions more convenient |
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// |
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//-------------------------------------------------------------------- |
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#include <sstream> |
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//---------------------------------------------------------------------------- |
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// A macro to throw exceptions whose text is assembled using stringstreams. |
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// |
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// Example: |
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// |
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// THROW (InputExc, "Syntax error in line " << line ", " << file << "."); |
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// |
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//---------------------------------------------------------------------------- |
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#define THROW(type, text) \ |
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do \ |
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{ \ |
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std::stringstream s; \ |
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s << text; \ |
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throw type (s); \ |
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} \ |
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while (0) |
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//---------------------------------------------------------------------------- |
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// Macros to add to or to replace the text of an exception. |
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// The new text is assembled using stringstreams. |
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// |
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// Examples: |
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// |
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// Append to end of an exception's text: |
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// |
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// catch (BaseExc &e) |
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// { |
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// APPEND_EXC (e, " Directory " << name << " does not exist."); |
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// throw; |
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// } |
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// |
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// Replace an exception's text: |
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// |
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// catch (BaseExc &e) |
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// { |
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// REPLACE_EXC (e, "Directory " << name << " does not exist. " << e); |
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// throw; |
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// } |
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//---------------------------------------------------------------------------- |
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#define APPEND_EXC(exc, text) \ |
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do \ |
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{ \ |
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std::stringstream s; \ |
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s << text; \ |
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exc.append (s); \ |
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} \ |
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while (0) |
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#define REPLACE_EXC(exc, text) \ |
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do \ |
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{ \ |
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std::stringstream s; \ |
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s << text; \ |
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exc.assign (s); \ |
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} \ |
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while (0) |
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//------------------------------------------------------------- |
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// A macro to throw ErrnoExc exceptions whose text is assembled |
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// using stringstreams: |
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// |
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// Example: |
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// |
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// THROW_ERRNO ("Cannot open file " << name << " (%T)."); |
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// |
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//------------------------------------------------------------- |
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#define THROW_ERRNO(text) \ |
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do \ |
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{ \ |
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std::stringstream s; \ |
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s << text; \ |
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::Iex::throwErrnoExc (s.str()); \ |
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} \ |
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while (0) |
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//------------------------------------------------------------- |
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// A macro to throw exceptions if an assertion is false. |
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// |
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// Example: |
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// |
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// ASSERT (ptr != NULL, NullExc, "Null pointer" ); |
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// |
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//------------------------------------------------------------- |
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#define ASSERT(assertion, type, text) \ |
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do \ |
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{ \ |
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if ((assertion) == false) \ |
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THROW (type, text); \ |
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} \ |
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while (0) |
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#endif
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