[Bug c++/62043] [4.9/4.10 Regression] GCC hangs / aborts / double free or corruption (!prev) on invalid input

[d.g.gorbachev at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62043

--- Comment #1 from Dmitry Gorbachev <d.g.gorbachev at gmail dot com> ---
Created attachment 33266
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33266&action=edit
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