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ffi/unsafe/nsstring docs: fix C type description

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The `_NSString` type corresponds to a reference, which is
an `NSString*`.
This commit is contained in:
Matthew Flatt 2015-01-02 18:44:05 -07:00
parent daf9415a98
commit c5d09957ba
1 changed files with 2 additions and 2 deletions
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pkgs/racket-doc/scribblings/foreign/ns.scrbl
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@ -20,9 +20,9 @@ libraries (usually along with @racket[ffi/objc]).
@defthing[_NSString ctype?]{
A type that converts between Racket strings and
@as-index{@tt{NSString}} (a.k.a. @as-index{@tt{CFString}})
@as-index{@tt{NSString*}} (a.k.a. @as-index{@tt{CFStringRef}})
values. That is, use @tt{_NSString} as a type for a foreign-function
@tt{NSString} argument or result.
@tt{NSString*} argument or result.
The @racket[_NSString] conversion keeps a weak mapping from Racket
strings to converted strings, so that converting the same string (in