diff options
Diffstat (limited to 'test/typeparam/min.go')
-rw-r--r-- | test/typeparam/min.go | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/test/typeparam/min.go b/test/typeparam/min.go new file mode 100644 index 0000000..a922450 --- /dev/null +++ b/test/typeparam/min.go @@ -0,0 +1,50 @@ +// run + +// 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 Ordered interface { + ~int | ~int64 | ~float64 | ~string +} + +func min[T Ordered](x, y T) T { + if x < y { + return x + } + return y +} + +func main() { + const want = 2 + if got := min[int](2, 3); got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } + + if got := min(2, 3); got != want { + panic(fmt.Sprintf("want %d, got %d", want, got)) + } + + if got := min[float64](3.5, 2.0); got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } + + if got := min(3.5, 2.0); got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } + + const want2 = "ay" + if got := min[string]("bb", "ay"); got != want2 { + panic(fmt.Sprintf("got %d, want %d", got, want2)) + } + + if got := min("bb", "ay"); got != want2 { + panic(fmt.Sprintf("got %d, want %d", got, want2)) + } +} |