[Issue 19982] padLeft usability issues

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19982

--- Comment #5 from Stephen Grammer <sgrammer at economicmodeling.com> ---
I didn't realize chain was so presumptuous. This makes me want to go check all
of my code that uses chain and make sure I'm using it correctly. It IS
documented though, which is comforting: "Due to safe type promotion in D,
chaining together different character ranges results in a uint range."

Should we resolve this issue, or use it to improve documentation of some of
these behaviors?

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