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From: David Chisnall <theraven@FreeBSD.org>
Date: Tue, 23 Jul 2013 10:23:43 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r253563 - head/contrib/libstdc++/include/c_std
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Author: theraven
Date: Tue Jul 23 10:23:43 2013
New Revision: 253563
URL: http://svnweb.freebsd.org/changeset/base/253563

Log:
  Add isnan() and isinf() to the global namespace in libstdc++'s <cmath>.
  
  The standard (n3242, section 17.6.1.1, paragraph 4) says that, because these are
  declared as macros in the C specification (even though they are
  implemented as functions in the C++ library) they should be in the global
  namespace.
  
  A surprising number of configure checks rely on this.  It was broken by recent
  cleanups to math.h.

Modified:
  head/contrib/libstdc++/include/c_std/std_cmath.h

Modified: head/contrib/libstdc++/include/c_std/std_cmath.h
==============================================================================
--- head/contrib/libstdc++/include/c_std/std_cmath.h	Tue Jul 23 05:11:22 2013	(r253562)
+++ head/contrib/libstdc++/include/c_std/std_cmath.h	Tue Jul 23 10:23:43 2013	(r253563)
@@ -589,6 +589,8 @@ _GLIBCXX_BEGIN_NAMESPACE(std)
     { return ::__gnu_cxx::__capture_isunordered(__f1, __f2); }
 
 _GLIBCXX_END_NAMESPACE
+using std::isnan;
+using std::isinf;
 
 #endif /* _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC */
 #endif