[Dune] [#455] tuples.hh uses preprocessor symbols to rename classes

[Dune]

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User who did this - Martin Nolte (nolte) 

Attached to Project - Dune
Summary - tuples.hh uses preprocessor symbols to rename classes
Task Type - Bug Report
Category - Common
Status - New
Assigned To - 
Operating System - Unspecified / All
Severity - Critical
Priority - Normal
Reported Version - SVN
Due in Version - 1.2
Due Date - Undecided
Details - In dune-common/common/tuples.hh preprocessor defines are used to rename new tr1 implementations into the old Dune names:

#define ElementType tuple_element
#define Size tuple_size
#define Tuple tuple

As these names are used locally in other code fragments, too. Bugs resulting from this defines are _very_ hard to track.

Please think twice before using the preprocessor. It causes trouble to others!

I already fixed ElementType, which was the cause of my trouble (Yes, I should simply have reverted the change)

More information can be found at the following URL:
http://www.dune-project.org/flyspray/index.php?do=details&task_id=455

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