[libcxx-commits] [libcxx] [libc++] Fix realloc bug in ios.cpp (PR #177526)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 commented:

I wasn't able to come up with a testing strategy for this so far - short of implementing our own `malloc` functions, which is relatively complicated AFAIK, since they're not really supposed to be replaced. @ldionne any thoughts?

Also, please don't use @ mentions inside the commit message.

https://github.com/llvm/llvm-project/pull/177526