`<vector>`, `<string>`: Avoid dereferencing null (fancy) pointers when calling `_Seek_to`/`_Unwrapped` on or comparing `vector` and `basic_string`'s iterators - #4275

Merged

Stephan T. Lavavej (StephanTLavavej) merged 7 commits into

microsoft:mainfrom

frederick-vs-ja:seek-to-vec-iter

Jan 11, 2024

Commits on Dec 17, 2023

Avoid dereferencing null pointer when seeking `vector`'s iterators
A. Jiang (frederick-vs-ja)
committed
db709e0

Commits on Jan 4, 2024

Add `_Refancy_maybe_null` and fix `basic_string`
A. Jiang (frederick-vs-ja)
committed
3fccda6
Skip EDG in C++20~ and debug
A. Jiang (frederick-vs-ja)
committed
a6d7ba3

Commits on Jan 6, 2024

Also fix `_Unwrapped`
A. Jiang (frederick-vs-ja)
committed
40f3dda
`operator<=>` overloads also need to be fixed
A. Jiang (frederick-vs-ja)
committed
d548d35

Commits on Jan 11, 2024