https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90634
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution|--- |FIXED
Target Milestone|--- |9.0
--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The 813 bytes seen with GCC 8.x is due to reallocations within std::vector, as
the sequence of path objects in [begin(),end()) is populated. The new code
counts the number of components first, so there's no need to keep growing as
the path is parsed. The sequence no longer uses std::vector at all, which also
reduces sizeof(path).
I'm not sure where the repeated 72 allocations come from, and can't check the
code right now, but the new code doesn't do it anyway. I think this can be
considered fixed.
