// run // Copyright 2021 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // Verify exact constant evaluation independent of // (mathematically equivalent) expression form. package main import "fmt" const ulp1 = imag(1i + 2i / 3 - 5i / 3) const ulp2 = imag(1i + complex(0, 2) / 3 - 5i / 3) func main() { if ulp1 != ulp2 { panic(fmt.Sprintf("%g != %g\n", ulp1, ulp2)) } }