"m...@mikesolomon.org" <m...@mikesolomon.org> writes: > The concern before was a comment about numerical inaccuracy, but after > having tested the patch, this seems not to be an issue.
Like Keith pointed out, it could become one if more than one operation is done before storing the result, and/or there are different code paths for doing the operations to the different ends of an interval. If left and right have equal values to start with, C++ is still not required to have left and right receive the same value after left = left*factor + offset; right = right*factor + offset; That's totally sick. It may be worth using GCC compiler options to disallow extended precision for intermediate results and/or the choice to store intermediates with less than full precision and try to retain some kind of deterministic behavior that way. -- David Kastrup _______________________________________________ lilypond-devel mailing list lilypond-devel@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-devel
