# Descriptor Manipulation Functions

There are four functions in this category: create a descriptor, commit a descriptor, copy a descriptor, and free a descriptor.

- CreateDescriptor
  Allocates memory for the descriptor data structure and preliminarily initializes it.
- CommitDescriptor
  Performs all initialization for the actual FFT computation.
- CopyDescriptor
  Copies an existing descriptor.
- FreeDescriptor
  Frees memory allocated for a descriptor.

Parent topic: FFT Functions