Expose floating point environment and handle fp exceptions #1379
Description
libmath provides a rich interface to deal with numerical exceptions, rounding modes, and the like.
We need to figure, if and how much of it we want to (e.g. as a resource that clears on destruction)
Useful references and any comments on this very welcome
Additionally:
- decide if and when to fail in the presence of unhandled floating point exceptions
- verify sane concurrency behavior
- beyond complex numbers that is the last part of libmath that needs wrapping