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author | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
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committer | Ondřej Surý <ondrej@sury.org> | 2011-09-13 13:11:55 +0200 |
commit | 80f18fc933cf3f3e829c5455a1023d69f7b86e52 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /src/pkg/unsafe/unsafe.go | |
parent | 28592ee1ea1f5cdffcf85472f9de0285d928cf12 (diff) | |
download | golang-80f18fc933cf3f3e829c5455a1023d69f7b86e52.tar.gz |
Imported Upstream version 60
Diffstat (limited to 'src/pkg/unsafe/unsafe.go')
-rw-r--r-- | src/pkg/unsafe/unsafe.go | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/pkg/unsafe/unsafe.go b/src/pkg/unsafe/unsafe.go deleted file mode 100644 index 8507bed52..000000000 --- a/src/pkg/unsafe/unsafe.go +++ /dev/null @@ -1,61 +0,0 @@ -// 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 unsafe contains operations that step around the type safety of Go programs. -*/ -package unsafe - -// ArbitraryType is here for the purposes of documentation only and is not actually -// part of the unsafe package. It represents the type of an arbitrary Go expression. -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 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 - -// 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 -// the slice descriptor, not the size of the memory referenced by the slice. -func Sizeof(v ArbitraryType) int - -// 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 -// number of bytes between the start of the struct and the start of the field. -func Offsetof(v ArbitraryType) int - -// 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. -// If v is of the form obj.f, it returns the alignment of field f within struct object obj. -func Alignof(v ArbitraryType) int - -// Typeof returns the type of an interface value, a runtime.Type. -func Typeof(i interface{}) (typ interface{}) - -// Reflect unpacks an interface value into its type and the address of a copy of the -// internal value. -func Reflect(i interface{}) (typ interface{}, addr Pointer) - -// Unreflect inverts Reflect: Given a type and a pointer to a value, it returns an -// empty interface value with contents the type and the value (not the pointer to -// the value). The typ is assumed to contain a pointer to a runtime type; the type -// information in the interface{} is ignored, so that, for example, both -// *reflect.StructType and *runtime.StructType can be passed for typ. -func Unreflect(typ interface{}, addr Pointer) (ret interface{}) - -// New allocates and returns a pointer to memory for a new value of the given type. -// The typ is assumed to hold a pointer to a runtime type. -// Callers should use reflect.MakeZero instead of invoking unsafe.New directly. -func New(typ interface{}) Pointer - -// NewArray allocates and returns a pointer to an array of n elements of the given type. -// The typ is assumed to hold a pointer to a runtime type. -// Callers should use reflect.MakeSlice instead of invoking unsafe.NewArray directly. -func NewArray(typ interface{}, n int) Pointer |