http://llvm.org/bugs/show_bug.cgi?id=9854. Also created an emulated hexfloat literal for use in some of the tests. <sigh> And cleaned up some harmless but irritating warnings in the tests.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@131318 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/iosfwd b/include/iosfwd
index 0e5c683..852d9e5 100644
--- a/include/iosfwd
+++ b/include/iosfwd
@@ -20,6 +20,7 @@
template<class charT> struct char_traits;
template<class T> class allocator;
+class ios_base;
template <class charT, class traits = char_traits<charT> > class basic_ios;
template <class charT, class traits = char_traits<charT> > class basic_streambuf;