7148352 performance improvement for stdcxx based on 7144618
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| | | # patch for 7148352 |
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| | | --- stdcxx-4.2.1/include/rw/_basic_ios.h 2008-04-24 17:23:43.000000000 -0700 |
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| | | +++ stdcxx-4.2.1/include/rw/_basic_ios.h 2012-03-08 10:57:28.262697514 -0800 |
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| | | @@ -217,12 +217,20 @@ |
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| | | // 27.4.4.2, p10 |
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| | | char narrow (char_type __c, char __dflt) const { |
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| | | - return _USE_FACET (ctype<char_type>, getloc ()).narrow (__c, __dflt); |
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| | | + // For better performance, call the non-const version of getloc |
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| | | + basic_ios<_CharT, _Traits>* p = |
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| | | + const_cast<basic_ios<_CharT, _Traits>*>(this); |
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| | | + |
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| | | + return _USE_FACET (ctype<char_type>, p->getloc()).narrow (__c, __dflt); |
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| | | } |
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| | | // 27.4.4.2, p11 |
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| | | char_type widen (char __c) const { |
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| | | - return _USE_FACET (ctype<char_type>, getloc ()).widen (__c); |
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| | | + // For better performance, call the non-const version of getloc |
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| | | + basic_ios<_CharT, _Traits>* p = |
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| | | + const_cast<basic_ios<_CharT, _Traits>*>(this); |
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| | | + |
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| | | + return _USE_FACET (ctype<char_type>, p->getloc()).widen (__c); |
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| | | } |
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| | | protected: |
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