On Thu, 1 Mar 2018, Tulio Magno Quites Machado Filho wrote:
In order to use the __float128 in C++ it's necessary to check if it is supported in libstdc++ (i.e. via _GLIBCXX_USE_FLOAT128) and if the compiler enabled its support too, e.g. -mfloat128 or -mno-float128.
Shouldn't we ensure that _GLIBCXX_USE_FLOAT128 is undefined instead?By the way, __FLOAT128__ is power-only. x86 has __SIZEOF_FLOAT128__ instead (why did power pick a different name?).
-- Marc Glisse
