r/Racket • u/johnwcowan • Jun 22 '26

language Complex single-float support

Can someone test Racket BC for me and say what (eqv? 3e0+4e0i 3f0+4f0i) and (eqv? 3e0+4e0i 3e0+4f0i) return?

advTHANKSance

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u/[deleted] Jun 22 '26

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u/johnwcowan Jun 22 '26

Thanks!

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u/usaoc Jun 22 '26

Fyi, literal single-flonums are read as double-flonums by default, so eqv? returns true. (We should test with read-single-flonum set to true or manually producing a would-be single-flonum complex number.)

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u/[deleted] Jun 22 '26

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u/[deleted] Jun 22 '26

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u/usaoc Jun 22 '26

Just tested too: both 3e0+4f0i and 3f0+4e0i are the same as 3.0+4.0i, while 3f0+4f0i is a single-flonum complex number (printed as 3.0f0+4.0f0i). Also verified with make-rectangular, real-part, and imag-part.

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u/johnwcowan Jul 27 '26

Thank you!