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unsafe: update doc

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changeset: 8812:3fb3e88d5aa8
gc: unsafe.Alignof, unsafe.Offsetof, unsafe.Sizeof now return uintptr

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/4951051
This commit is contained in:
Mikio Hara 2011-08-31 17:59:35 -04:00 committed by Russ Cox
parent 2cc4a54dec
commit 7c203b8bc1
1 changed files with 3 additions and 3 deletions
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6
src/pkg/unsafe/unsafe.go
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@ -24,17 +24,17 @@ type Pointer *ArbitraryType
// Sizeof returns the size in bytes occupied by the value v. The size is that of the // Sizeof returns the size in bytes occupied by the value v. The size is that of the
// "top level" of the value only. For instance, if v is a slice, it returns the size of // "top level" of the value only. For instance, if v is a slice, it returns the size of
// the slice descriptor, not the size of the memory referenced by the slice. // the slice descriptor, not the size of the memory referenced by the slice.
func Sizeof(v ArbitraryType) int func Sizeof(v ArbitraryType) uintptr
// Offsetof returns the offset within the struct of the field represented by v, // Offsetof returns the offset within the struct of the field represented by v,
// which must be of the form struct_value.field. In other words, it returns the // which must be of the form struct_value.field. In other words, it returns the
// number of bytes between the start of the struct and the start of the field. // number of bytes between the start of the struct and the start of the field.
func Offsetof(v ArbitraryType) int func Offsetof(v ArbitraryType) uintptr
// Alignof returns the alignment of the value v. It is the maximum value m such // Alignof returns the alignment of the value v. It is the maximum value m such
// that the address of a variable with the type of v will always always be zero mod m. // that the address of a variable with the type of v will always always be zero mod m.
// If v is of the form obj.f, it returns the alignment of field f within struct object obj. // If v is of the form obj.f, it returns the alignment of field f within struct object obj.
func Alignof(v ArbitraryType) int func Alignof(v ArbitraryType) uintptr
// Typeof returns the type of an interface value, a runtime.Type. // Typeof returns the type of an interface value, a runtime.Type.
func Typeof(i interface{}) (typ interface{}) func Typeof(i interface{}) (typ interface{})