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https://github.com/golang/go
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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
38 lines
659 B
Go
38 lines
659 B
Go
// run
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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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// Test typed integer constants.
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package main
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import "fmt"
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type T int
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func (t T) String() string { return fmt.Sprintf("T%d", int(t)) }
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const (
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A T = 1 << (1 << iota)
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B
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C
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D
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E
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)
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func main() {
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s := fmt.Sprintf("%v %v %v %v %v", A, B, C, D, E)
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if s != "T2 T4 T16 T256 T65536" {
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println("type info didn't propagate in const: got", s)
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panic("fail")
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}
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x := uint(5)
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y := float64(uint64(1)<<x) // used to fail to compile
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if y != 32 {
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println("wrong y", y)
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panic("fail")
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}
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}
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