> C compiler is one of the most rigorously specified pieces of software out ther...

ori_b · 2026-02-05T22:03:52 1770329032

There's undefined behavior, which is quite well specified. What do you mean by unspecified behavior? Do you have an example?

ndesaulniers · 2026-02-06T07:16:48 1770362208

Read section J.1.

irishcoffee · 2026-02-05T22:30:29 1770330629

Undefined is absolutely clear in the spec.

Unspecified is whatever you want it to mean. I am also laughing, having never heard "unspecified" before.

LiamPowell · 2026-02-06T00:36:03 1770338163

Unspecified behaviour is defined in the glossary at the start of the spec and the term "unspecified" appears over a hundred times...