HP Fortran Programmer's Reference (September 2007)

Intrinsic procedures
Intrinsic procedure specifications
Chapter 11 625
SIZEOF(A)
Description
Return the number of bytes of storage used by the argument.
Class
Inquiry nonstandard function.
Argument
A may be of any type (except assumed-size arrays or passed-length character arguments).
Result type
Integer.
SPACING(X)
Description
Returns the absolute spacing of model numbers near the argument value.
Class
Elemental function.
Argument
X must be of type real.
Result type/
type parameters
Same as X.
Result value
If X is not zero, the result has the value b
e-p
, where b , e , and p are as defined in “The Real
Number System Model” on page 509, provided this result is within range; otherwise, the
result is the same as that of TINY(X).