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author | Russ Cox <rsc@golang.org> | 2010-02-01 00:25:59 -0800 |
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committer | Russ Cox <rsc@golang.org> | 2010-02-01 00:25:59 -0800 |
commit | 68796b0270e270c034cd99bfbaacaced5d77a363 (patch) | |
tree | 6590f313875bb775a8d04bb714090ecb578bde98 /test/ddd.go | |
parent | 65e671b903807967f84817f84703ff46d6feed9f (diff) | |
download | go-68796b0270e270c034cd99bfbaacaced5d77a363.tar.gz go-68796b0270e270c034cd99bfbaacaced5d77a363.zip |
gc: add ... T, rework plain ...
No longer a distinct type; now a property of func types.
R=ken2
CC=golang-dev
https://golang.org/cl/197042
Diffstat (limited to 'test/ddd.go')
-rw-r--r-- | test/ddd.go | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/test/ddd.go b/test/ddd.go new file mode 100644 index 0000000000..682f22ffe3 --- /dev/null +++ b/test/ddd.go @@ -0,0 +1,105 @@ +// $G $D/$F.go && $L $F.$A && ./$A.out + +// Copyright 2010 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 sum(args ...int) int { + s := 0 + for _, v := range args { + s += v + } + return s +} + +func sumA(args []int) int { + s := 0 + for _, v := range args { + s += v + } + return s +} + +func sum2(args ...int) int { return 2 * sum(args) } + +func sum3(args ...int) int { return 3 * sumA(args) } + +func intersum(args ...interface{}) int { + s := 0 + for _, v := range args { + s += v.(int) + } + return s +} + +type T []T + +func ln(args ...T) int { return len(args) } + +func ln2(args ...T) int { return 2 * ln(args) } + +func main() { + if x := sum(1, 2, 3); x != 6 { + panicln("sum 6", x) + } + if x := sum(); x != 0 { + panicln("sum 0", x) + } + if x := sum(10); x != 10 { + panicln("sum 10", x) + } + if x := sum(1, 8); x != 9 { + panicln("sum 9", x) + } + if x := sum2(1, 2, 3); x != 2*6 { + panicln("sum 6", x) + } + if x := sum2(); x != 2*0 { + panicln("sum 0", x) + } + if x := sum2(10); x != 2*10 { + panicln("sum 10", x) + } + if x := sum2(1, 8); x != 2*9 { + panicln("sum 9", x) + } + if x := sum3(1, 2, 3); x != 3*6 { + panicln("sum 6", x) + } + if x := sum3(); x != 3*0 { + panicln("sum 0", x) + } + if x := sum3(10); x != 3*10 { + panicln("sum 10", x) + } + if x := sum3(1, 8); x != 3*9 { + panicln("sum 9", x) + } + if x := intersum(1, 2, 3); x != 6 { + panicln("intersum 6", x) + } + if x := intersum(); x != 0 { + panicln("intersum 0", x) + } + if x := intersum(10); x != 10 { + panicln("intersum 10", x) + } + if x := intersum(1, 8); x != 9 { + panicln("intersum 9", x) + } + + if x := ln(nil, nil, nil); x != 3 { + panicln("ln 3", x) + } + if x := ln([]T{}); x != 1 { + panicln("ln 1", x) + } + if x := ln2(nil, nil, nil); x != 2*3 { + panicln("ln2 3", x) + } + if x := ln2([]T{}); x != 2*1 { + panicln("ln2 1", x) + } +} |