go issue15039 源码
golang issue15039 代码
文件路径：/test/fixedbugs/issue15039.go
// run
// Copyright 2016 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
func main() {
const fffd = "\uFFFD"
// runtime.intstring used to convert int64 to rune without checking
// for truncation.
u := uint64(0x10001f4a9)
big := string(u)
if big != fffd {
panic("big != bad")
}
// cmd/compile used to require integer constants to fit into an "int".
const huge = string(1<<100)
if huge != fffd {
panic("huge != bad")
}
}
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