# IEEE_FEATURES Intrinsic Module

The IEEE_FEATURES module contains derived data types that include named constants for controlling the level of support, and intrinsic module procedures.

The derived types in the intrinsic modules have components that are private. The IEEE_FEATURES intrinsic module supports specification of essential IEEE features. It defines the following derived type:

- IEEE_FEATURES_TYPE: Specifies IEEE features. Its values are the following named constants:

  IEEE_DATATYPE | IEEE_INF
  IEEE_DIVIDE | IEEE_NAN
  IEEE_ROUNDING | IEEE_INEXACT_FLAG
  IEEE_SQRT | IEEE_INVALID_FLAG
  IEEE_SUBNORMAL | IEEE_UNDERFLOW_FLAG
  IEEE_HALTING |

Parent topic: IEEE Intrinsic Modules and Procedures