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0 pointscogman102y ago0 comments

The 80bit float? Not as far as I'm aware. However, it's fairly trivial to represent a 127bit float with 2 64bit floats. And with the nature of AVX/SSE, you don't really take much of a performance hit for doing that as you are often operating on both parts of the double with the same instruction.

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enriquto2y ago

Do you know if there's language support for that? Are there obscure gcc options that make "long double" be quadruple precision floats?

zokier2y ago

You can just use standard C _Float128 type https://gcc.gnu.org/onlinedocs/gcc/Floating-Types.html

cogman10OP2y ago

Which language?

For C++, there's this: https://en.cppreference.com/w/cpp/types/floating-point

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