[project @ 1996-07-25 20:43:49 by partain]

[ghc-hetmet.git] / ghc / docs / release_notes / 0-05-notes.lit

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-\begin{description}
-%-------------------------------------------------------------------
-\item[1.1 syntax:]
-Does \Haskell{} version~1.1 syntax.  The code for the parser
-(\tr{parsers/hsp/}) has been tidied up quite a bit [nice job, Kevin].
-
-%-------------------------------------------------------------------
-\item[Expressions and patterns:]
-All forms of expressions and patterns work, including overloaded
-patterns and @n+k@ patterns.
-
-%-------------------------------------------------------------------
-\item[A big part of the standard prelude is operational:]
-These parts (in \tr{lib/prelude}) have been compiled with the new
-compiler, and programs compiled with the new compiler can be linked to
-it.
-
-With the exceptions of (a)~hooking in the standard Haskell I/O system
-(see next item) and (b)~special pleading for constant-time-access
-arrays (or other magical features), all Prelude stuff is either done
-or easily do-able.
-
-%-------------------------------------------------------------------
-\item[Simple resolution of ambiguous overloading of numeric types:]
-(As per Haskell report, section~4.3.4).  @default@ declarations do
-{\em NOT} work; however, the ``default default''
-(@default (Int, Double)@) is wired in.  This should clear up nearly
-all annoying ``ambiguous dictionary'' errors.
-
-%-------------------------------------------------------------------
-\item[Better non-standard I/O:]
-We have implemented the bare bones of the I/O described in
-\tr{docs/io-design/}.  It's not standard \Haskell{} I/O
-(we haven't yet implemented the impedance-matcher discussed in the
-doc), and it's not the same as what was there in 0.02.  However, you
-can now write a simple reads-stdin/writes-stdout program:
-
-\begin{verbatim}
-#include "GhcPrelude.h"
-
-main = readString `thenIO` ( \ s ->
-       writeString (my_String_to_String_manglification s) )
-\end{verbatim}
-
-The implementation of @error@ (via @sysError@) is also as described in
-the I/O document.
-
-%-------------------------------------------------------------------
-\item[Faster compiler:]
-The compiler is faster than version~0.02---we promise---but the
-significant tuning work is not yet done.  We will do it after The
-Mangler (renamer) is in.
-
-%-------------------------------------------------------------------
-\item[Run compiled code on a Sun4:]
-If you compile your program to C (\tr{.hc} files), with, e.g.:
-
-\begin{verbatim}
-% glhc -C Foo.hs
-\end{verbatim}
-
-then you compile the output on a Sun4 with:
-
-\begin{verbatim}
-% glhc -c Foo.hc
-\end{verbatim}
-
-and, if you have the right things to link to, you can link with:
-
-\begin{verbatim}
-% glhc -o foo Foo.o
-\end{verbatim}
-
-The ``right things to link to'' include: the runtime system (
-\tr{cd runtimes/standard; make} on a sun4), and the standard libraries
-(\tr{cd lib; make all} on a sun4).
-
-We have not yet tried to make this work for Every Known Unix Box In
-The Universe.  (But we plan to, with your help :-)
-
-%-------------------------------------------------------------------
-\item[Upheaval during FPCA:]
-As advertised with 0.02: Files moved around, modules and data types
-were renamed, and a generally Much Cleaner World now exists.  We have
-no plans to do more of the same (at least for the compiler proper).
-\end{description}