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authortheraven <theraven@FreeBSD.org>2013-07-23 10:23:43 +0000
committertheraven <theraven@FreeBSD.org>2013-07-23 10:23:43 +0000
commit9a3acc6b30529900744f14a99cdbd2fcfad2d49b (patch)
treefe855d8d15ee7b0a08e8951b7cdd958fe4d0b37b
parentd50608e9d480e9bbbc64315082cc278266806d00 (diff)
downloadFreeBSD-src-9a3acc6b30529900744f14a99cdbd2fcfad2d49b.zip
FreeBSD-src-9a3acc6b30529900744f14a99cdbd2fcfad2d49b.tar.gz
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.
-rw-r--r--contrib/libstdc++/include/c_std/std_cmath.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/contrib/libstdc++/include/c_std/std_cmath.h b/contrib/libstdc++/include/c_std/std_cmath.h
index 897290a..a5cb69a 100644
--- a/contrib/libstdc++/include/c_std/std_cmath.h
+++ b/contrib/libstdc++/include/c_std/std_cmath.h
@@ -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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