[Bug libstdc++/79820] std::ifstream sets errno to zero

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79820

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|8.0                         |5.5

--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 5.5, 6.5 and 7,.3