| Linux in-mum-web1499.main-hosting.eu 5.14.0-503.40.1.el9_5.x86_64 #1 SMP PREEMPT_DYNAMIC Mon May 5 06:06:04 EDT 2025 x86_64 Path : /opt/golang/1.22.0/test/ |
| Current File : //opt/golang/1.22.0/test/shift3.go |
// run
// Copyright 2022 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.
// Test that the compiler's noder uses the correct type
// for RHS shift operands that are untyped. Must compile;
// run for good measure.
package main
import (
"fmt"
"math"
)
func f(x, y int) {
if x != y {
panic(fmt.Sprintf("%d != %d", x, y))
}
}
func main() {
var x int = 1
f(x<<1, 2)
f(x<<1., 2)
f(x<<(1+0i), 2)
f(x<<0i, 1)
f(x<<(1<<x), 4)
f(x<<(1.<<x), 4)
f(x<<((1+0i)<<x), 4)
f(x<<(0i<<x), 1)
// corner cases
const M = math.MaxUint
f(x<<(M+0), 0) // shift by untyped int representable as uint
f(x<<(M+0.), 0) // shift by untyped float representable as uint
f(x<<(M+0.+0i), 0) // shift by untyped complex representable as uint
}