tree 084344ffa49bf4963111f56a3fe65b0da267ae31
parent fcb104594b0bb4b8ac306cb2f55ecdad40974683
author Derek Mauro <761129+derekmauro@users.noreply.github.com> 1602269271 -0400
committer GitHub <noreply@github.com> 1602269271 -0400
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJfgLBXCRBK7hj4Ov3rIwAAdHIIAKgIMrboXLUxvL3MRi4pQWOw
 q2c4gLF0prhQH0KKkOPcN7sumXV/64Iuc2FeLS2dwjVU2MiJzi4jJe1/XloH3Euw
 1mxvrTv+eSx8HhpRZc1KUDaW9E3Rur0I/Q1EVKn8qX3g0JMX5R8Wh/0lNezYvho6
 AkfQHAEPsBsdquiGOTvCpCkjoCyOXvXBGZBCN6y3xAubVt7pSWOQgytxuoCzFWbl
 nI2DzJhDDHkt3cLJ0K8RCTgp8B5gDlAaEvXLamtxIB9ehBJ5bHAGK4LMriFm5SVO
 cAw2E3hD2Z+I8SFF/b5qsRubOnK9r4AGCZnN/DunDfmQTlnX6K61vqyFs1FWm8U=
 =p7aI
 -----END PGP SIGNATURE-----
 

Adds bounds-checking to the second range of absl container algorithms (#813)

The APIs for the two-range `absl::c_mismatch`, `absl::c_swap_ranges`,
and `absl::c_transform` are misleading as they do not check the bounds
of the second range against the first one.

This commit cleans up ensures that buggy calls are not exploitable;
non-buggy calls are unaffected.

This is consistent with both C++14's two-range `std::` equivalents and
C++20's `std::ranges::` equivalents.
http://wg21.link/mismatch
http://wg21.link/alg.swap
http://wg21.link/alg.transform