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https://github.com/golang/go
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42 lines
834 B
Go
42 lines
834 B
Go
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// run
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// Copyright 2022 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 the compiler's noder uses the correct type
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// for RHS shift operands that are untyped. Must compile;
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// run for good measure.
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package main
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import (
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"fmt"
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"math"
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)
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func f(x, y int) {
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if x != y {
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panic(fmt.Sprintf("%d != %d", x, y))
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}
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}
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func main() {
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var x int = 1
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f(x<<1, 2)
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f(x<<1., 2)
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f(x<<(1+0i), 2)
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f(x<<0i, 1)
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f(x<<(1<<x), 4)
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f(x<<(1.<<x), 4)
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f(x<<((1+0i)<<x), 4)
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f(x<<(0i<<x), 1)
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// corner cases
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const M = math.MaxUint
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f(x<<(M+0), 0) // shift by untyped int representable as uint
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f(x<<(M+0.), 0) // shift by untyped float representable as uint
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f(x<<(M+0.+0i), 0) // shift by untyped complex representable as uint
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}
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