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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libstdc++/66145] [5/6 Regression] std::ios_base::failure objects thrown from libstdc++.so use old ABI
Date: Tue, 06 Oct 2015 21:52:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66145

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |redi at gcc dot gnu.org

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Reduced from testcase at  https://bugzilla.redhat.com/show_bug.cgi?id=1269290

#include <iostream>
#include <fstream>
#include <system_error>
#include <exception>


int main() {

  try {
    std::ifstream input("notafile");
    input.exceptions(std::ifstream::failbit | std::ifstream::badbit);
    input.get();
  } catch(const std::ios::failure &e) {
    std::cout << "caught a failure " << e.what()
      << '\n';
  } catch(const std::system_error &e) {
    std::cout << "caught a system_error " << e.what()
      << '\n';
  } catch(const std::runtime_error &e) {
    std::cout << "caught a runtime_error " << e.what()
      << '\n';
  } catch(const std::exception &e) {
    std::cout << "caught an exception " << e.what()
      << '\n';
  }
}

The last handler matches, but it should have matched earlier.