Intel® Fortran Compiler 17.0 Developer Guide and Reference
Elemental Module Intrinsic Function (Generic): Returns whether an IEEE value is normal.
USE, INTRINSIC :: IEEE_ARITHMETIC
result = IEEE_IS_NORMAL (x)
x |
(Input) Must be of type REAL. |
The result type is default logical. The result has the value true if the value of x is normal; otherwise, false.
An IEEE value is normal if IEEE_CLASS(x) has one of the following values:
IEEE_POSITIVE_NORMAL |
IEEE_POSITIVE_ZERO |
IEEE_NEGATIVE_NORMAL |
IEEE_NEGATIVE_ZERO |
IEEE_IS_NORMAL (SQRT(-2.0)) has the value false if IEEE_SUPPORT_SQRT (-2.0) has the value true.