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go/test/typeparam/adder.go
Dan Scales 370ff5ff96 [dev.typeparams] test: update all the typeparam tests to use the new union/tilde syntax
Did a mix of tilde and non-tilde usage. Tilde notation is not quite
fully functional, so no tests are currently trying to distinguish
(fail/not fail) based on tilde usage.

Change-Id: Ib50cec2fc0684f9d9f3561c889fd44c7a7af458c
Reviewed-on: https://go-review.googlesource.com/c/go/+/324572
Trust: Dan Scales <danscales@google.com>
Trust: Robert Griesemer <gri@golang.org>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
2021-06-03 16:05:22 +00:00

30 lines
573 B
Go

// run -gcflags=-G=3
// Copyright 2021 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
import (
"fmt"
)
type AddType interface {
int | int64 | string
}
// Add can add numbers or strings
func Add[T AddType](a, b T) T {
return a + b
}
func main() {
if got, want := Add(5, 3), 8; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
if got, want := Add("ab", "cd"), "abcd"; got != want {
panic(fmt.Sprintf("got %d, want %d", got, want))
}
}