In C++0x mode, import iota and is_sorted from namespace std into

namespace __gnu_cxx to avoid ambiguous call errors.  copy_n would be a
good candidate for this too, except it was standardized with a
different return type.

Tested:
  `make -k check-c++` on x86_64-unknown-linux-gnu.

libstdc++-v3/ChangeLog:

2011-04-06  Jeffrey Yasskin  <jyasskin@google.com>

        * include/ext/algorithm (is_sorted): In C++0x mode import from
        namespace std.
        * include/ext/numeric (iota): In C++0x mode import from
        namespace std.
        * testsuite/ext/is_sorted/cxx0x.cc: New.
        * testsuite/ext/iota/cxx0x.cc: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@172073 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 0 deletions

diff --git a/libstdc++-v3/include/ext/algorithm b/libstdc++-v3/include/ext/algorithm
index 368b5918058..417a03ab97c 100644
--- a/libstdc++-v3/include/ext/algorithm
+++ b/libstdc++-v3/include/ext/algorithm
@@ -471,6 +471,9 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
     }
 #endif
 
+#ifdef __GXX_EXPERIMENTAL_CXX0X__
+  using std::is_sorted;
+#else
   // is_sorted, a predicated testing whether a range is sorted in
   // nondescending order.  This is an extension, not part of the C++
   // standard.
@@ -526,6 +529,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	  return false;
       return true;
     }
+#endif  // __GXX_EXPERIMENTAL_CXX0X__
 
   /**
    *  @brief Find the median of three values.