CppCon 2018: JF Bastien “Signed integers are two's complement”

JF Bastien explains the history and standardization of two's complement representation for signed integers in C++.

CppCon.org — Presentation Slides, PDFs, Source Code and other presenter materials are available at: github.com/CppCon/CppCon2018 — There is One True Representation for signed integers, and that representation is two’s complement. There are, however, rumors of a fantasy world—before C++20—where ones' complement, signed magnitude and "pure binary representations" dwell. That world boasts Extraordinary Values, Padding Bits, and just like our world it hosts swaths of Undefined Behavior. Join me in exploring this magnificent fantasy world, and discover its antics. Together we'll marvel at how the other representations were forever banished from real-world C++, doomed to cast mere shadows onto our reality. — JF Bastien, Compiler engineer Apple JF is a compiler engineer. He leads C++ development at Apple. — Videos Filmed & Edited by Bash Films: BashFilms.com Work at Hudson River Trading (HRT): tinyurl.com/safxfctf --- Videos Filmed & Edited by Bash Films: BashFilms.com