This fixes a crash in
namespace {
struct X {};
}
extern "C" X test2_b;
X test2_b
before we would assign different linkages to each of the test2_b decls.
llvm-svn: 176869
This SO question: http://stackoverflow.com/questions/15344402/how-can-i-read-a-0xff-in-a-file-with-libc-istream-iterator/15347225#15347225 highlighted the lack of a cast in the implementation of std::cin. Added. I unfortunately don't have a test case to add to the suite since this bug only shows itself when using std::cin. The current testsuite setup does not have a way a good way to test std::cin.
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