Adds bounds-checking to the second range of absl container algorithms #810
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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
rogeeff
approved these changes
Oct 9, 2020
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The APIs for the two-range
absl::c_mismatch,absl::c_swap_ranges,and
absl::c_transformare misleading as they do not check the boundsof 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 andC++20's
std::ranges::equivalents.http://wg21.link/mismatch
http://wg21.link/alg.swap
http://wg21.link/alg.transform