X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=docs%2Fusers_guide%2F6.6-notes.xml;h=bd4561960ef85238938d87d6f3215032b03f6874;hb=aedb94f5f220b5e442b23ecc445fd38c8d9b6ba0;hp=6582935914479e7fa2c16a46bf4311240eb1578d;hpb=93c274ab468687d45c3abf0b33314b5b554f133f;p=ghc-hetmet.git

diff --git a/docs/users_guide/6.6-notes.xml b/docs/users_guide/6.6-notes.xml
index 6582935..bd45619 100644
--- a/docs/users_guide/6.6-notes.xml
+++ b/docs/users_guide/6.6-notes.xml
@@ -11,24 +11,24 @@
           when you compile with <option>-threaded</option>, you now get
           an RTS flag <option>-N</option> that allows you to specify the
           number of OS threads that GHC should use. Defaults to 1.
-          See <xref linkend="sec-using-smp" /> and <xref
+          See <xref linkend="using-smp" /> and <xref
           linkend="lang-parallel" />.
         </para>
       </listitem>
       <listitem>
         <para>
-          GHC's modules are now also bundled into a
-          <literal>ghc</literal> package, allowing programs to make use
-          of GHC as a library. The interface has not yet been properly
-          designed, so is subject to change.
+          GHC now handles impredicative polymorphism; see <xref linkend="impredicative-polymorphism" />.
         </para>
       </listitem>
       <listitem>
         <para>
-          GHC now handles impredicative polymorphism and there are
-          changes to the way scoped type variables work; see
-          <ulink url="http://www.haskell.org/pipermail/glasgow-haskell-users/2006-January/009565.html"> Simon's e-mail</ulink>
-          for more details.
+	  There are significant changes to the way scoped type variables work,
+	  and some programs that used to compile may no longer do so.
+	  The new story is documented in  <xref linkend="scoped-type-variables" />.
+          (<ulink url="http://www.haskell.org/pipermail/glasgow-haskell-users/2006-January/009565.html"> Simon's e-mail</ulink>
+          gives some background, but the user manual should be complete (tell
+          us if not), and
+          certainly takes precedence if there is any conflict.)
         </para>
       </listitem>
       <listitem>
@@ -41,6 +41,7 @@
           <programlisting>
     f (x, y) | x `seq` False = undefined
              | otherwise = [x,y]</programlisting>
+          See <xref linkend="bang-patterns" /> for more details.
         </para>
       </listitem>
       <listitem>
@@ -61,6 +62,11 @@
           ignored in comments, so ASCII code with comments in, for
           example, Latin-1 will also work.
         </para>
+
+        <para>
+          A way to have Latin-1 source files pre-processed by GHC is
+          described in <xref linkend="pre-processor" />.
+        </para>
       </listitem>
       <listitem>
         <para>
@@ -96,6 +102,8 @@
           performance when a lot of memory is taken up by
           <literal>STArray</literal>s, <literal>IOArray</literal>s,
           <literal>STRef</literal>s or <literal>IORef</literal>s.
+          For more details see
+          <ulink url="http://hackage.haskell.org/trac/ghc/ticket/650">trac bug #650</ulink>.
         </para>
       </listitem>
       <listitem>
@@ -163,7 +171,6 @@
             <option>-pgma</option>,
             <option>-pgml</option>,
             <option>-pgmdll</option>,
-            <option>-pgmdep</option>,
             <option>-pgmF</option>,
             <option>-optl</option>,
             <option>-optdll</option>,
@@ -184,6 +191,16 @@
       </listitem>
       <listitem>
         <para>
+          The
+          <option>-no-recomp</option><indexterm><primary><option>-no-recomp</option></primary></indexterm>
+          option is now called
+          <option>-fforce-recomp</option><indexterm><primary><option>-fforce-recomp</option></primary></indexterm>.
+          (the old name is still accepted for backwards compatibility,
+          but will be removed in the future).
+        </para>
+      </listitem>
+      <listitem>
+        <para>
           The <option>-fglobalise-toplev-names</option>
           flag has been removed.
         </para>
@@ -294,9 +311,21 @@
       </listitem>
       <listitem>
         <para>
-          It is now possible, with the <literal>-I</literal> RTS flag,
-          to control the amount of idle time that happens before a major
-          GC is performed.
+          If the program is idle for a certain amount of time then GHC
+          will now take the opportunity to do a major garbage collection.
+          The amount of idle time that is required before that happens
+          is controlled by the new <literal>-I</literal> RTS flag.
+          There is more detail in <xref linkend="rts-options-gc" />.
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          It is now possible to control the frequency that the RTS clock
+          ticks at with the new <literal>-V</literal> RTS flag. This is
+          normally handled automatically by other flags, but this flag
+          is needed if you want to increase the resolution of the time
+          profiler.
+          For more details see <xref linkend="rts-options-misc" />.
         </para>
       </listitem>
       <listitem>
@@ -307,8 +336,11 @@
       </listitem>
       <listitem>
         <para>
-          The <option>-split-objs</option> flag can now be used with
-          <option>--make</option>, and hence can be used by cabal.
+          The <option>-split-objs</option> flag, which when used to compile
+          libraries means executables using the library will be smaller,
+          can now be used with <option>--make</option> and hence
+          can be used by cabal.
+          See <xref linkend="options-linker" /> for more information.
         </para>
       </listitem>
       <listitem>
@@ -319,6 +351,18 @@
 	  Template Haskell.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          GHC now supports postfix operators, as a simple generalisation of
+          left sections (<xref linkend="postfix-operators"/>).
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          Parallel arrays, as enabled by <literal>-fparr</literal>, no
+          longer work.  They'll be coming back shortly, in full glory.
+        </para>
+      </listitem>
     </itemizedlist>
   </sect2>
 
@@ -348,6 +392,23 @@
           See <xref linkend="ghci-commands" /> for more information.
         </para>
       </listitem>
+      <listitem>
+        <para>
+          GHCi now has an <literal>:edit</literal> command which pops
+          up an editor on the most recently loaded file, or a
+          specified file.  See <xref linkend="ghci-commands" /> for
+          more information.
+        </para>
+      </listitem>
+      <listitem>
+        <para>
+          GHCi now invokes <literal>print</literal> by default on the
+          result of IO actions and bindings at the prompt.  This is
+          occasionally not what you want, so it can be disabled (at
+          least for bindings) with 
+          <literal>:set -fno-print-bind-result</literal>.  See <xref
+          linkend="ghci-stmts" />.</para>
+      </listitem>
     </itemizedlist>
   </sect2>
 
@@ -373,7 +434,7 @@
       <itemizedlist>
         <listitem>
           <para>
-            Version number 2.0 (was 1.0).
+            Version number 2.1 (was 1.0).
           </para>
         </listitem>
         <listitem>
@@ -468,13 +529,16 @@
             <literal>inline</literal> which, provided the RHS is visible
             to the compiler, forcibly inlines its argument.
             Otherwise, it acts like <literal>id</literal>.
+            For more details, see <xref linkend="special-ids" />.
           </para>
         </listitem>
         <listitem>
           <para>
             <literal>GHC.Exts</literal> now provides a function
-            <literal>lazy</literal> which forces GHC to think that its
-            argument is lazy in its first argument.
+            <literal>lazy</literal>, where <literal>lazy f</literal>
+            behaves like <literal>f</literal>, except GHC is forced
+            to believe that it is lazy in its first argument.
+            For more details, see <xref linkend="special-ids" />.
           </para>
         </listitem>
         <listitem>
@@ -941,7 +1005,7 @@
       <itemizedlist>
         <listitem>
           <para>
-            Version number 2.0 (was 1.0).
+            Version number 2.1 (was 1.0).
           </para>
         </listitem>
         <listitem>
@@ -1047,7 +1111,7 @@
       <itemizedlist>
         <listitem>
           <para>
-            Version number 2.0 (was 1.0).
+            Version number 2.1 (was 1.0).
           </para>
         </listitem>
         <listitem>
@@ -1202,6 +1266,14 @@
             <literal>network</literal> package.
           </para>
         </listitem>
+        <listitem>
+          <para>
+            The <literal>Network.CGI.Compat</literal> module provides
+            a similar interface to the old <literal>Network.CGI</literal>
+            module, but it uses <literal>Text.XHtml</literal> rather than
+            <literal>Text.Html</literal>.
+          </para>
+        </listitem>
       </itemizedlist>
     </sect3>
 
@@ -1595,6 +1667,24 @@
   </sect2>
 
   <sect2>
+    <title>GHC As A Library</title>
+      <para>
+        Version number 6.6.
+      </para>
+      <para>
+        The internal modules of GHC are now available as a library, package
+        name <literal>ghc</literal>.
+        The interface has not been designed with use by other programs
+        in mind, so expect the API to vary radically in future
+        releases.
+      </para>
+      <para>
+        An introduction to using the library can be found
+        <ulink url="http://www.haskell.org/haskellwiki/GHC/As_a_library">on the wiki</ulink>.
+      </para>
+  </sect2>
+
+  <sect2>
     <title>Internal changes</title>
     <itemizedlist>
       <listitem>