PR 58191 patch

[François Dumont]

Hi

     Here is a patch to fix the small PR 58191 regression. I don't 
remember why I hadn't used the __gnu_debug::__base from the start rather 
than trying to reproduce its behavior within the __check_partitioned* 
methods. This way we only detect random access safe iterator to enhance 
performance but do not check the iterator category otherwise, concept 
checks are there for that reason.

     The patch is generated from the 4.8 branch. I still need to reg 
test it but if it succeeded is it ok to commit ? Just in trunk or also 
in 4.8 branch ?

2013-08-27  François Dumont  <fdumont@gcc.gnu.org>

     PR libstdc++/58191
     * include/debug/macros.h (__glibcxx_check_partitioned_lower): Add
     __gnu_debug::__base calls on iterators passed to internal debug check.
     (__glibcxx_check_partitioned_upper): Likewise.
     * include/debug/functions.h (__check_partitioned_lower_aux):
     Delete, code move ...
     (__check_partitioned_lower): ...here.
     (__check_partitioned_upper_aux): Delete, code move...
     (__check_partitioned_upper): ... here.

François

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