tustvold opened a new issue, #7356:
URL: https://github.com/apache/arrow-datafusion/issues/7356
### Describe the bug
alter_fp_rounding_mode makes use of `fesetround` in order to alter the
rounding mode on various architectures
```
let current = fegetround();
fesetround(if UPPER { FE_UPWARD } else { FE_DOWNWARD });
let result = operation(lhs, rhs);
fesetround(current);
result
```
Unfortunately if `operation` panics, `fesetround` will never revert the
rounding mode
### To Reproduce
_No response_
### Expected behavior
Ideally we wouldn't modify global thread-local state at all, but I'm not
sure if this can be avoided
### Additional context
_No response_
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