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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-16 19:23:18 +0000 |
commit | 43a123c1ae6613b3efeed291fa552ecd909d3acf (patch) | |
tree | fd92518b7024bc74031f78a1cf9e454b65e73665 /test/typeparam/fact.go | |
parent | Initial commit. (diff) | |
download | golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.tar.xz golang-1.20-43a123c1ae6613b3efeed291fa552ecd909d3acf.zip |
Adding upstream version 1.20.14.upstream/1.20.14upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'test/typeparam/fact.go')
-rw-r--r-- | test/typeparam/fact.go | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/typeparam/fact.go b/test/typeparam/fact.go new file mode 100644 index 0000000..3c9a13a --- /dev/null +++ b/test/typeparam/fact.go @@ -0,0 +1,32 @@ +// 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" + +func fact[T interface{ ~int | ~int64 | ~float64 }](n T) T { + if n == 1 { + return 1 + } + return n * fact(n-1) +} + +func main() { + const want = 120 + + if got := fact(5); got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } + + if got := fact[int64](5); got != want { + panic(fmt.Sprintf("got %d, want %d", got, want)) + } + + if got := fact(5.0); got != want { + panic(fmt.Sprintf("got %f, want %f", got, want)) + } +} |