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On 10/27/2016 10:00 AM, Jonathan Wakely wrote:
On 27 October 2016 at 14:52, Edward Diener wrote:It sounds like you are also saying that there is no way to catch the old type, even if I wanted to, since the header file declaration has the decorated attribute.No, the attribute is only present conditionally, see https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html If you compile with _GLIBCXX_USE_CXX11_ABI defined to zero then you get the declaration of the old type (and the old COW std::string, and the old std::list with O(n) size()).
Thanks ! IMO clearly you should be throwing the std::ios_base::failure which corresponds to the _GLIBCXX_USE_CXX11_ABI macro setting being used. That gcc is throwing the the old type even when _GLIBCXX_USE_CXX11_ABI is defined as 1 cannot be right. But I think that is what you already said.
What always works now is to catch std::exception rather than std::ios_base::failure so I will use that.
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