Intel® Fortran Compiler

Developer Guide and Reference

ID 767251
Date 3/31/2025
Public

Visible to Intel only — GUID: GUID-CCA4F654-391E-499F-9992-F5824094439F

Document Table of Contents

Data Representation Models

Several of the numeric intrinsic functions are defined by a model set for integers (for each intrinsic kind used) and reals (for each real kind used). The bit functions are defined by a model set for bits (binary digits).

The following intrinsic functions provide information on the data representation models:

Intrinsic function

Model

Value returned

BIT_SIZE

Bit

The number of bits (s) in the bit model

DIGITS

Integer or Real

The number of significant digits in the model for the argument

EPSILON

Real

The number that is almost negligible when compared to one

EXPONENT

Real

The value of the exponent part of a real argument

FRACTION

Real

The fractional part of a real argument

For more information on the range of values for each data type (and kind), see Data and I/O in the Compiler Reference.