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Dec 5, 2015 at 18:41

The GCC wiki has a scary list of all the arithmetic transformations that don't work in compliant floating point C:

Making sure you're not a bot!

Apr 5, 2022 at 07:31

Bash's list of behaviours that aren't POSIX-compliant is longer than I expected: https://www.gnu.org/software/bash/manual/html_node/Bash-POSIX-Mode.html I used fish for a while and liked it, but POSIX-ish shells work with everything. These days I use a heavily customised zsh.

Bash POSIX Mode (Bash Reference Manual)

Bash POSIX Mode (Bash Reference Manual)

Dec 30, 2017 at 18:26

Entertaining Stack Overflow discussion (from April 1st) of .png source code input to a C++ compiler: https://stackoverflow.com/questions/5508110/why-is-this-program-erroneously-rejected-by-three-c-compilers I'm slightly horrified that you could accept .png source code and still be a standards compliant compiler!

visual c++ - Why is this program erroneously rejected by three C++ compilers? - Stack Overflow

Apr 15, 2015 at 23:42

Delighted to see that jQuery 3.0 will have standards-compliant Promises:

Deferred: Backwards-compatible standards interoperability by gibson042 · Pull Request #1996 · jquery/jquery

Deferred: Backwards-compatible standards interoperability by gibson042 · Pull Request #1996 · jquery/jquery

Ref #1821 (comment) Maintained backwards compatibility (outside of specifications): Don't process resolution values: dfd.resolve( thenable ).done( expectsThenable ) Multi-valued resolution: df...