]> https://gitweb.dealii.org/ - dealii-svn.git/commitdiff
Remove forward declaration files.
authorwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Fri, 6 Sep 2002 22:06:34 +0000 (22:06 +0000)
committerwolf <wolf@0785d39b-7218-0410-832d-ea1e28bc413d>
Fri, 6 Sep 2002 22:06:34 +0000 (22:06 +0000)
git-svn-id: https://svn.dealii.org/trunk@6371 0785d39b-7218-0410-832d-ea1e28bc413d

deal.II/doc/news/2002/c-3-4.html

index 1563bac5980111d4dfec2293b307b58866d2c41c..66d60425f0bd67a69e3b44cedeefb4524f906693 100644 (file)
@@ -33,6 +33,33 @@ contributor's names are abbreviated by WB (Wolfgang Bangerth), GK
 <h3>General</h3>
 
 <ol>
+  <li> <p> 
+       Removed: The forward declarations files have gone. We have never
+       propagated their use in the example programs, but these files have been
+       there in the base, lac, and grid include directories, and forward
+       declared all classes that were present in the respective parts of the
+       library. This, the idea was, enables you to use just this include file
+       in your own header files, rather than including the full declarations of
+       these classes. However, maintaining these forward declaration files has
+       been a constant thorn in our side, be it that the timing of their
+       generation was difficult when using parallel builds, or that they were
+       difficult to generate at first. The latter is now the reason for their
+       abolition: we had a script for their generation, but it did not take
+       into account namespaces, so we got clashes when we found that we had
+       used the same class name in two different namespaces, since the script
+       put the forward declaration incorrectly into the global namespace where
+       they conflicted. Since we do not plan to extend the script by a
+       parser that can properly handle opening and closing braces of
+       namespaces, we simply drop these files.
+       <br>
+       What you should do if you have used these forward declaration files: you
+       have two possibilities - either include the respective header file in
+       which the class is fully declared, or write the forward declaration into
+       your headers yourself.
+       <br>
+       (WB 2002/09/05)
+       </p>
+
   <li> <p> 
        New: There is now
        <a href="../../reports/assemble/index.html" target="body">a new report

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