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Catch exceptions by const-reference
Exceptions caught by value incur needless cost in C++, most of them can be caught by const-reference, especially as nearly none are actually used. This could allow compiler generate a slightly more efficient code.
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36 changed files with 45 additions and 45 deletions
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@ -2737,7 +2737,7 @@ lbool context::solve(unsigned from_lvl)
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// }
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}
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VERIFY (validate ());
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} catch (unknown_exception)
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} catch (const unknown_exception &)
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{}
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if (m_last_result == l_true) {
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