Jonathan Wakely 73f3b8a53e libstdc++: Fix std::strong_order to handle NaN on VAX ... I mistakenly believed that VAX floats do not support NaN, but with GCC __builtin_isnan(__builtin_nan("")) is true. That means my previous change to <compare> is wrong, because it fails to handle NaN. When std::numeric_limits<floating-point-type>::is_iec559 is false, as on VAX, the standard only requires an ordering that is consistent with the ordering observed by comparison operators. With this change the ordering is -NaN < numbers < +NaN, and there is no support for different NaN bit patterns (as I'm not even sure if GCC supports any for VAX). libstdc++-v3/ChangeLog: * libsupc++/compare (_Strong_order::_S_fp_cmp) [__vax__]: Handle NaN.		2022-03-10 14:25:46 +00:00
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compare	libstdc++: Fix std::strong_order to handle NaN on VAX	2022-03-10 14:25:46 +00:00
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Makefile.am	libstdc++: Fix and simplify freestanding configuration [PR103866]	2022-01-10 12:18:14 +00:00
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