libstdc++: Fix -Wunused-local-typedefs warning in <compare>
libstdc++-v3/ChangeLog: * libsupc++/compare (strong_order::_S_fp_cmp): Move typedef inside #if condition.
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@ -850,8 +850,6 @@ namespace std
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return strong_ordering::equal; // All bits are equal, we're done.
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using enum _Fp_fmt;
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using _Int = decltype(__ix);
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constexpr auto __fmt = _S_fp_fmt<_Tp>();
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if constexpr (__fmt == _Dbldbl) // double-double
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@ -899,6 +897,8 @@ namespace std
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// bit to be reversed. Flip that to give desired ordering.
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if (__builtin_isnan(__x) && __builtin_isnan(__y))
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{
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using _Int = decltype(__ix);
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constexpr int __nantype = __fmt == _Binary32 ? 22
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: __fmt == _Binary64 ? 51
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: __fmt == _Binary128 ? 111
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