| double.eps |
The smallest positive floating-point number such
that `1+eps != 1'.
In particular, if either
double.base == 2 or double.rounding == 0 , double.eps is double.base^double.ulp.digits .
Otherwise, double.eps is (double.base^double.ulp.digits)/2 .
|
| double.neg.eps |
A small positive floating-point number such that
`1-double.neg.eps != 1'.
In particular, if double.base == 2 or double.rounding == 0 ,
double.neg.eps is double.base^double.neg.ulp.digits .
Otherwise, double.neg.eps is (double.base^double.neg.ulp.digits)/2 .
Because double.neg.ulp/digits is bounded below by -(double.digits+3) ,
double.neg.eps may not be the smallest number that can alter 1 by
subtraction.
|
| double.xmin |
The smallest non-vanishing normalized floating-point
power of the radix, i.e., double.xmin is double.base^double.min.exp .
|
| double.xmax |
The largest finite floating-point number.
In particular double.xmax is (1-double.neg.eps)*double.digits^double.max.exp .
Note - on some machines double.xmax will be only the
second, or perhaps third, largest number, being
too small by 1 or 2 units in the last digit of the significand.
|
| double.base |
the base for the floating-point representation.
|
| double.digits |
The number of significant digits in the given base.
|
| double.rounding |
The rounding action:
0 if floating-point addition chops;
1 if floating-point addition rounds, but not in the IEEE style;
2 if floating-point addition rounds in the IEEE style;
3 if floating-point addition chops, and there is partial underflow;
4 if floating-point addition rounds, but not in the IEEE style, and there is partial underflow;
5 if floating-point addition rounds in the IEEE style, and there is partial underflow.
|
| double.guard |
The number of guard digits for multiplication with truncating arithmetic.
It is 0 if floating-point arithmetic rounds, or if it
truncates and only double.digits base double.base digits
participate in the post-normalization shift of the
floating-point significand in multiplication;
1 if floating-point arithmetic truncates and more
than double.digits base double.base digits participate in the
post-normalization shift of the floating-point significand in multiplication.
|
| double.ulp.digits |
The largest negative integer such that `1+double.base^double.ulp.digits != 1',
except that double.ulp.digits is bounded below by -(double.digits+3) .
|
| double.neg.ulp.digits |
The largest negative integer such that `1-double.base^double.neg.ulp.digits != 1',
except that double.neg.ulp.digits is bounded below by -(double.digits+3) .
|
| double.exponent |
The number of bits (decimal places if double.base == 10)
reserved for the representation of the exponent
(including the bias or sign) of a floating-point number.
|
| double.min.exp |
The largest in magnitude negative integer such that
double.base^double.min.exp is positive and normalized.
|
| double.max.exp |
The smallest positive power of double.base that overflows.
|
| integer.max |
The largest integer that can be represented.
|
| sizeof.long |
The size, in bytes, of the C long type.
|
| sizeof.longlong |
The size, in bytes, of the C long long type.
|
| sizeof.longdouble |
The size, in bytes, of the C long double type.
|