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go/test/const2.go
Rémy Oudompheng 79db6ada48 cmd/gc: error on constant shift overflows.
Fixes #3019.

R=golang-dev, rsc
CC=golang-dev, remy
https://golang.org/cl/5674044
2012-02-16 00:19:42 +01:00

19 lines
519 B
Go

// errchk $G $D/$F.go
// Copyright 2009 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.
package main
const (
A int = 1
B byte; // ERROR "type without expr|expected .=."
)
const LargeA = 1000000000000000000
const LargeB = LargeA * LargeA * LargeA
const LargeC = LargeB * LargeB * LargeB // ERROR "constant multiplication overflow"
const AlsoLargeA = LargeA << 400 << 400 >> 400 >> 400 // ERROR "constant shift overflow"