This is needed when running the tests in Freestanding mode, where main()
isn't treated specially. In Freestanding, main() doesn't get mangled as
extern "C", so whatever runtime we're using fails to find the entry point.
One way to solve this problem is to define a symbol alias from __Z4mainiPPc
to _main, however this requires all definitions of main() to have the same
mangling. Hence this commit.
Summary:
pr42199
When using regex_constants::match_prev_avail, it is defined that
--first is valid, and match_not_bol and match_not_bow should be
ignored. At the moment these flags are not ignored. This fixis that.
Reviewers: ldionne, miyuki, EricWF, mclow.lists, #libc
Reviewed By: ldionne, miyuki, #libc
Subscribers: broadwaylamb, dexonsmith, libcxx-commits
Tags: #libc
Differential Revision: https://reviews.llvm.org/D75622
Louis Dionne