// 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)) | |
} | |
} |