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fc0dc04095
Very few of the compiler regression tests include a comment saying waht they do. Many are obvious, some are anything but. I've started with a-c in the top directory. More will follow once we agree on the approach, correctness, and thoroughness here. zerodivide.go sneaked in too. R=rsc, r CC=golang-dev https://golang.org/cl/5656100
22 lines
599 B
Go
22 lines
599 B
Go
// errorcheck
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// Copyright 2009 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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// Verify that large integer constant expressions cause overflow.
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// Does not compile.
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package main
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const (
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A int = 1
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B byte; // ERROR "type without expr|expected .=."
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)
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const LargeA = 1000000000000000000
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const LargeB = LargeA * LargeA * LargeA
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const LargeC = LargeB * LargeB * LargeB // ERROR "constant multiplication overflow"
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const AlsoLargeA = LargeA << 400 << 400 >> 400 >> 400 // ERROR "constant shift overflow"
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