[flang-commits] [flang] [flang][runtime] Fix integer overflow check in FORMAT (PR #79368)

[Peter Klausler via flang-commits]

klausler wrote:

> Compare [format.h lines 206-236](https://github.com/llvm/llvm-project/blob/main/flang/include/flang/Common/format.h#L206). Would that code work here? Does that code also need to be changed?

Good point.  I've reworked the change.

https://github.com/llvm/llvm-project/pull/79368