From 72454f401e3547468819f4dfb67d23f4056aefe1 Mon Sep 17 00:00:00 2001 From: David Forsythe Date: Thu, 31 Jan 2013 09:10:15 -0800 Subject: [PATCH] add if to borrowed ptr tutorial --- doc/tutorial-borrowed-ptr.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/doc/tutorial-borrowed-ptr.md b/doc/tutorial-borrowed-ptr.md index 6ec51c5035e93..939051ca6058d 100644 --- a/doc/tutorial-borrowed-ptr.md +++ b/doc/tutorial-borrowed-ptr.md @@ -50,7 +50,7 @@ Suppose we wanted to write a procedure that computed the distance between any two points, no matter where they were stored. For example, we might like to compute the distance between `on_the_stack` and `shared_box`, or between `shared_box` and `unique_box`. One option is to define a function that takes -two arguments of type `Point`—that is, it takes the points by value. But we +two arguments of type `Point`—that is, it takes the points by value. But if we define it this way, calling the function will cause the points to be copied. For points, this is probably not so bad, but often copies are expensive. Worse, if the data type contains mutable fields, copying can change