From 0b643ea0976f7bbd3cebef08c449090869701226 Mon Sep 17 00:00:00 2001 From: "Joe Richey joerichey@google.com" Date: Mon, 17 Jul 2017 15:40:02 -0700 Subject: util: Add conversions for byte/pointer arrays --- util/util.go | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'util/util.go') diff --git a/util/util.go b/util/util.go index 32e5c06..792b66c 100644 --- a/util/util.go +++ b/util/util.go @@ -37,6 +37,18 @@ func Ptr(slice []byte) unsafe.Pointer { return unsafe.Pointer(&slice[0]) } +// ByteSlice takes a pointer to some data and views it as a slice of bytes. +// Note, indexing into this slice is unsafe. +func ByteSlice(ptr unsafe.Pointer) []byte { + return (*[1 << 30]byte)(ptr)[:] +} + +// PointerSlice takes a pointer to an array of pointers and views it as a slice +// of pointers. Note, indexing into this slice is unsafe. +func PointerSlice(ptr unsafe.Pointer) []unsafe.Pointer { + return (*[1 << 30]unsafe.Pointer)(ptr)[:] +} + // Index returns the first index i such that inVal == inArray[i]. // ok is true if we find a match, false otherwise. func Index(inVal int64, inArray []int64) (index int, ok bool) { -- cgit v1.2.3