1 GHC 2.03 is a minor upgrade of GHC 2.02. It differs in the following
6 A slew of small bugs are fixed. You can find the complete list
7 at @http://www.cse.ogi.edu/~simonpj/ghc-bugs.html@. One
8 bug remains un-fixes, namely the crash when there's an empty
9 comment at the end of file. It's wierd!
12 Last-minute language changes have been implemented (minor changes
13 to the libraries, and to module export/hiding scope rules)
16 It is only available as a source distribution. If you want to
17 use it you'll have to build it from source. Nowadays this is
18 a well-documented process (see the build and installation guide, but
19 note that this release is still not self-booting, you still need
20 to have The Good Old Compiler (0.29) at your disposal).
23 None of the bugs in GHC 2.02 are show-stoppers, so you'll only want
24 to upgrade if you are a build-from-source junkie and the bugs are
27 Apart from bug-fixes, which are itemized elsewhere,
28 the exact language and standard-library changes are as follows:
31 A hiding clause hides the unqualified name, but not the qualified name.
33 There's a new @Numeric@ library, containing mostly mildly marginal
34 code for showing and reading numbers. Parts of its exports used to be
35 exported by @Prelude@, but now you'll have to import them explicitly.
36 It also defines some functions that weren't provided before; have a
37 look in the Haskell library report for details of complete interface.
39 The following extra functions are exported from @IO@:
40 @try@, @bracket@, @bracket_@, @hGetLine@, @hWaitForInput@.
43 In addition, we've made following changes to GHC libraries/GHC's
44 implementation of the Haskell standard prelude:
47 \item The function @fromRational__@, exported from @PrelNum@, is now called @fromRat@.
48 (And it's exported by @Numeric@.)
50 Documentation for the Glasgow specific interfaces plus the system
51 libraries have been re-instated. Posix library documentation included also.
53 @maybe@ is now exported from Prelude, as it should have been in 2.02.
55 Equality on @IO.Handle@ is now defined as specified by the library
58 @Ix.rangeSize@ returns \tr{0} on an empty range;previously it failed.
60 The new interface @GlaExts@ which is meant to be the gateway to the
61 various Glasgow extensions has now been documented.
63 @GlaExts@ now exports the representation of @Char@.
65 The mutable variable interface, @MutVar@, has also been documented,
66 together with @ByteArray@, @MutableArray@ and @Foreign@.
68 Added documentation on how to compile mutually recursive modules with