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https://github.com/golang/go
synced 2024-11-27 00:31:23 -07:00
f14a5347e6
This used to panic when compiled by gccgo. Updates #2876. R=golang-dev, rsc CC=golang-dev https://golang.org/cl/6100055
33 lines
565 B
Go
33 lines
565 B
Go
// run
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// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// Test that typed and untyped negative zero floating point constants
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// are treated as equivalent to zero constants.
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package main
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import "math"
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const zero = 0.0
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func main() {
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x := -zero
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b := math.Float64bits(x)
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if b != 0 {
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panic(b)
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}
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x = -float64(zero)
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b = math.Float64bits(x)
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if b != 0 {
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panic(b)
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}
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v := x
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b = math.Float64bits(-v)
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if b != 0x8000000000000000 {
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panic(b)
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}
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}
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