On Friday, 14 August 2015 at 11:44:35 UTC, Matthias Bentrup wrote:
On Friday, 14 August 2015 at 09:20:14 UTC, Ola Fosheim Grøstad
wrote:
On Friday, 14 August 2015 at 08:03:34 UTC, Walter Bright wrote:
1. 'real' has enough precision to hold 64 bit integers.
Except for the lowest negative value…
(it has only 63 bits + floating point sign bit)
actually the x87 format has 64 mantissa bits, although the bit
63 is always '1' for normalized numbers.
Yes, Walter was right.
The most negative number can be represented since it is a -(2^63)
, so you only need the exponent to represent it (you only need 1
bit from the mantissa).
