A new dragon in the den: fast conversion from floating-point numbers
Cassio Neri
Standard C++ provides a few functions to convert a double or float value to string, namely, sprintf, stringstream::operator<<, snprintf, to_string, to_chars and format.
This talk concerns what goes on behind the scenes, i.e, the algorithms which these functions might use to do their job. Curiously, many of these algorithms have dragon-related names like Dragon, Grisu, Errol, Ryu and Dragonbox.
Here mythology meets technology and we shall introduce the new dragon that has just arrived in the den.
(Please leave your bows and arrows at home, they won't be necessary here.)
Cassio Neri
I hold a PHD in Applied Mathematics from University of Paris Dauphine. I have been professionally coding in C++ for more than 15 years but my coding experience has started far earlier when I was a kid. I currently work on the financial industry in London but had previously worked in academia for more than a decade.
I am the author of a few research articles and I have published them on peer-reviewed journals on Mathematics (there's an equation named after me), Finance, Computer Science and C++.