{Left|Right|Left Right} Arrow through small circle (`U+21F4`, `U+2B30`, `U+2948`)

[jmcwilliams403]

• The requested characters are ...
  • [ ] Latin
  • [ ] Cyrillic
  • [ ] Greek
  • [ ] Punctuation
  • [ ] Diacritic / Mark
  • [x] Symbol
• The requested characters are used in ...
  • [ ] The alphabet / character set of a natural language.
  • [ ] The alphabet / character set of a constructed language.
  • [ ] The alphabet / character set of a transliteration or notation system.
  • [x] Mathematical or other professional use in documents.
  • [x] The symbol set of a programming language.
  • [ ] The symbol set of a command-line program.
• [x] Some other monospace/programming fonts supported this character. Provide images below.

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These arrows are used for denoting execution of a partially defined function. They may also be used in languages like Swift which allow overloading arbitrary Unicode math operators.

A⇴B, A⬰B, A⥈B

Noto Sans Math:

Deja Vu Sans Mono:

Julia Mono:

Everson Mono:

Fairfax HD:

[cormullion]

(off topic - @jmcwilliams403 Not sure why you're seeing U+FFFD for JuliaMono here: 🤔

What app are you using to generate your samples?

Is Noto Sans Math monospaced/programming on your system?

)

[jmcwilliams403]

I saw the glyph in JuliaMono didn't match the others and mistakenly thought "yeah this is probably using fallback" and then pasted in a placeholder instead, even though mismatching unicode glyphs is characteristic for Julia and I should have known better.

[jmcwilliams403]

Noto Sans Math isn't programming but it's an example of a font where all three are present and match each other so I showed it first as an example. Plus, Noto Sans Mono exists, so it's the closest thing to that.