unsafe: remove incorrect type conversion in docs
Fixes #17818.
Change-Id: Id7242b0bdd5e1db254b44ae29900fc4f3362c743
Reviewed-on: https://go-review.googlesource.com/32828
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/unsafe/unsafe.go b/src/unsafe/unsafe.go
index 0b59ff2..859ca4f 100644
--- a/src/unsafe/unsafe.go
+++ b/src/unsafe/unsafe.go
@@ -155,7 +155,7 @@
// var s string
// hdr := (*reflect.StringHeader)(unsafe.Pointer(&s)) // case 1
// hdr.Data = uintptr(unsafe.Pointer(p)) // case 6 (this case)
-// hdr.Len = uintptr(n)
+// hdr.Len = n
//
// In this usage hdr.Data is really an alternate way to refer to the underlying
// pointer in the slice header, not a uintptr variable itself.
@@ -168,7 +168,7 @@
// // INVALID: a directly-declared header will not hold Data as a reference.
// var hdr reflect.StringHeader
// hdr.Data = uintptr(unsafe.Pointer(p))
-// hdr.Len = uintptr(n)
+// hdr.Len = n
// s := *(*string)(unsafe.Pointer(&hdr)) // p possibly already lost
//
type Pointer *ArbitraryType
