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
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