[Dune] [#904] nullptr compatibility code is incompatible with GCC 4.6 (Attachment added)

[Dune]

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User who did this - Steffen Müthing (smuething) 

Attached to Project - Dune
Summary - nullptr compatibility code is incompatible with GCC 4.6
Task Type - Bug Report
Category - Common
Status - Unconfirmed
Assigned To - 
Operating System - Unspecified / All
Severity - Medium
Priority - Normal
Reported Version - SVN (pre2.2)
Due in Version - Undecided
Due Date - Undecided
Details - The nullptr compatibility wrapper in dune-common does not work correctly with GCC 4.6. The problem is that the wrapper
is based on an older draft of C++0x, while GCC 4.6 implements nullptr according to the latest draft. The difference between
the two draft versions is that nullptr_t was moved into namespace std and requires inclusion of <cstddef>.

The attached patch fixes the configure test and includes the required header in nullptr.hh if compiler support is detected, but I don't know exactly what to do about nullptr_t - do it like tuple, array etc. and import the definition into the Dune namespace?



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http://www.dune-project.org/flyspray/index.php?do=details&task_id=904

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