ComplexTests.DifferentiableTests/testZeroTangentVectorInitializer no longer compiles with Swift trunk

Question

ComplexTests.DifferentiableTests/testZeroTangentVectorInitializer no longer compiles with Swift trunk

finagolfin opened this issue 3 years ago · comments

I just built the Jan. 27 source snapshot of the Swift toolchain natively on my Android phone and then tried building and testing the latest commit on this repo's main branch, only to get this error:

swift-numerics/Tests/ComplexTests/DifferentiableTests.swift:74:42: error: value of type 'Complex<Float>' has no member 'zeroTangentVector'
    XCTAssertEqual(Complex<Float>(-5, 5).zeroTangentVector, Complex(0, 0))

I'm able to reproduce on Fedora Core 33 by using the official Centos 8 trunk snapshot builds from last month: Jan. 9 works but Jan. 23 doesn't, so this error isn't specific to Android.

I haven't dug into the reason, just reporting the regression.

Stephen Canon · Answer 1 · Mon Feb 08 2021 00:06:15 GMT+0800 (China Standard Time)

This is because zeroTangentVectorInitializer has been removed on Swift main. I think @compnerd is looking into a fix.

Stephen Canon · Answer 2 · Sat Feb 20 2021 04:13:46 GMT+0800 (China Standard Time)

Fixed in 0cf166d.

finagolfin · Answer 3 · Sat Feb 20 2021 12:42:41 GMT+0800 (China Standard Time)

Yep, I can run the tests now.