reg@lti.UUCP (Rick Genter x18) (08/10/88)
I understand that dpANS C requires that sizeof (float) <= sizeof (double). However, does it state anywhere that a double should provide greater *precision* than a float, or for that matter that casting a float to a double (or vice versa) shouldn't raise a hardware exception? I can envision a situation where sizeof (float) == sizeof (double), the difference being that floats trade off mantissa bits for exponent bits. I believe the VAX architecture provides this. - reg