diff options
Diffstat (limited to 'test/fixedbugs/bug273.go')
-rw-r--r-- | test/fixedbugs/bug273.go | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/test/fixedbugs/bug273.go b/test/fixedbugs/bug273.go new file mode 100644 index 000000000..dd5aaa7b8 --- /dev/null +++ b/test/fixedbugs/bug273.go @@ -0,0 +1,93 @@ +// $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. + +// http://code.google.com/p/go/issues/detail?id=589 + +package main + +import "unsafe" + +var bug = false + +var minus1 = -1 +var big int64 = 10 | 1<<32 + +var g1 []int + +func shouldfail(f func(), desc string) { + defer func() { recover() }() + f() + if !bug { + println("BUG") + bug = true + } + println("didn't crash: ", desc) +} + +func badlen() { + g1 = make([]int, minus1) +} + +func biglen() { + g1 = make([]int, big) +} + +func badcap() { + g1 = make([]int, 10, minus1) +} + +func badcap1() { + g1 = make([]int, 10, 5) +} + +func bigcap() { + g1 = make([]int, 10, big) +} + +var g3 map[int]int +func badmapcap() { + g3 = make(map[int]int, minus1) +} + +func bigmapcap() { + g3 = make(map[int]int, big) +} + +var g4 chan int +func badchancap() { + g4 = make(chan int, minus1) +} + +func bigchancap() { + g4 = make(chan int, big) +} + +const addrBits = unsafe.Sizeof((*byte)(nil)) + +var g5 chan [1<<15]byte +func overflowchan() { + if addrBits == 32 { + g5 = make(chan [1<<15]byte, 1<<20) + } else { + // cannot overflow on 64-bit, because + // int is 32 bits and max chan value size + // in the implementation is 64 kB. + panic(1) + } +} + +func main() { + shouldfail(badlen, "badlen") + shouldfail(biglen, "biglen") + shouldfail(badcap, "badcap") + shouldfail(badcap1, "badcap1") + shouldfail(bigcap, "bigcap") + shouldfail(badmapcap, "badmapcap") + shouldfail(bigmapcap, "bigmapcap") + shouldfail(badchancap, "badchancap") + shouldfail(bigchancap, "bigchancap") + shouldfail(overflowchan, "overflowchan") +} |