dragonbox and posits

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Andrew Marlow

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Dec 1, 2023, 4:51:57 AM12/1/23

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Hello everyone,

I recently came across the dragonbox algorithm implemented in modern C++, https://github.com/jk-jeon/dragonbox, for formatting IEEE-754 floating numbers by extracting the significand and exponent.

I was wondering if there are any plans to do something similar for posits?

Regards,

Andrew Marlow
http://www.andrewpetermarlow.co.uk

Theodore Omtzigt

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Dec 1, 2023, 8:56:40 AM12/1/23

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Hi Andrew:

In the Universal library we have Dragon4 and Grisu3 implementations, and thank you for this link. Within Universal there are several algorithms for float to string transformations as we have a large collection of floating-point number systems and this problem is very rich and interesting, with many innovations still needed. We will take a look at this Dragonbox algorithm and add it to the mix.