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author | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:13:40 +0200 |
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committer | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:13:40 +0200 |
commit | 5ff4c17907d5b19510a62e08fd8d3b11e62b431d (patch) | |
tree | c0650497e988f47be9c6f2324fa692a52dea82e1 /test/simassign.go | |
parent | 80f18fc933cf3f3e829c5455a1023d69f7b86e52 (diff) | |
download | golang-5ff4c17907d5b19510a62e08fd8d3b11e62b431d.tar.gz |
Imported Upstream version 60upstream/60
Diffstat (limited to 'test/simassign.go')
-rw-r--r-- | test/simassign.go | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/test/simassign.go b/test/simassign.go new file mode 100644 index 000000000..28408abc2 --- /dev/null +++ b/test/simassign.go @@ -0,0 +1,77 @@ +// $G $F.go && $L $F.$A && ./$A.out + +// Copyright 2009 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 + +var a, b, c, d, e, f, g, h, i int + +func printit() { + println(a, b, c, d, e, f, g, h, i) +} + +func testit(permuteok bool) bool { + if a+b+c+d+e+f+g+h+i != 45 { + print("sum does not add to 45\n") + printit() + return false + } + return permuteok || + a == 1 && + b == 2 && + c == 3 && + d == 4 && + e == 5 && + f == 6 && + g == 7 && + h == 8 && + i == 9 +} + +func swap(x, y int) (u, v int) { + return y, x +} + +func main() { + a = 1 + b = 2 + c = 3 + d = 4 + e = 5 + f = 6 + g = 7 + h = 8 + i = 9 + + if !testit(false) { + panic("init val\n") + } + + for z := 0; z < 100; z++ { + a, b, c, d, e, f, g, h, i = b, c, d, a, i, e, f, g, h + + if !testit(z%20 != 19) { + print("on ", z, "th iteration\n") + printit() + panic("fail") + } + } + + if !testit(false) { + print("final val\n") + printit() + panic("fail") + } + + a, b = swap(1, 2) + if a != 2 || b != 1 { + panic("bad swap") + } + + a, b = swap(swap(a, b)) + if a != 2 || b != 1 { + panic("bad swap") + } +} |