What is an ABI, and Why is Breaking it Bad?

https://cppcon.org/ https://github.com/CppCon/CppCon2020

Occasionally, someone will toss out in discussion “That’s an ABI breaking change”. What does that mean? Is that a problem? In this talk, I’ll walk though what an ABI is, show a couple different kinds of ABI, and give examples of innocuous changes that caused an “ABI break”. I’ll talk about history (libstdc++ and string, and others), and talk about some things that the C++ committee is considering.

Marshall has been programming professionally for almost 40 years. He is the author of Boost.Algorithm, and has been a contributor to Boost for more almost 20 years. Until recently, he was the chairman of the Library working group of the C++ standard committee, and the lead developer for libc++, the C++ standard library for LLVM.

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