Overloading the semantics of the register keyword (followup)

posted by  mvrok (14)  15 months ago (blogs.msdn.com)

John Albert asks two questions:

What would "register float" mean? How would this work under fp:fast?

The basic guideline is that "intermediate expressions will be computed in as high as precision as is practical". For instance, suppose for a particular architecture all double-precision computations have to be emulated (i.e. a chip that intrinsically supports only single precision computations). Under the guideline, its not at all practical to emulate double or extended prec