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unsafe: add missing case to doc for Pointer

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Fixes #1433.

R=r, gri
CC=golang-dev
https://golang.org/cl/3999047
This commit is contained in:
Russ Cox 2011-01-20 12:50:50 -05:00
parent 50fe459ce2
commit ecbcd816dc
1 changed files with 3 additions and 2 deletions
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5
src/pkg/unsafe/unsafe.go
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@ -14,8 +14,9 @@ type ArbitraryType int
// Pointer represents a pointer to an arbitrary type. There are three special operations
// available for type Pointer that are not available for other types.
// 1) A pointer value of any type can be converted to a Pointer.
// 2) A uintptr can be converted to a Pointer.
// 3) A Pointer can be converted to a uintptr.
// 2) A Pointer can be converted to a pointer value of any type.
// 3) A uintptr can be converted to a Pointer.
// 4) A Pointer can be converted to a uintptr.
// Pointer therefore allows a program to defeat the type system and read and write
// arbitrary memory. It should be used with extreme care.
type Pointer *ArbitraryType