Save/Restore floating-point control words, so that rounding-mode doesn't change wildly in a shared library.
This struct ensures that floating point is save/restored and set consistently in plugin callbacks.
See Source File
http://www.boost.org/LICENSE_1_0.txt
Guillaume Piolat 2015-2016.
Save/Restore floating-point control words, so that rounding-mode doesn't change wildly in a shared library.