| p_psComponent | Basic structure for the component tree |
| p_psParseLevelInfo | A metadata data structure used in parsing arrays |
| psArray | An array to support primitive types |
| psBitSet | Struct containing array of bytes to hold bit data and corresponding array length |
| psCube | 3-Dimensional Euclidean Coordinate System |
| psDB | Database handle |
| psEarthPole | |
| psErr | Error message object |
| psErrorDescription | An error code with description |
| psFits | FITS file object |
| psHash | The hash-table itself |
| psHashBucket | A bucket that holds an item of data |
| psHistogram | The basic histogram structure which contains bounds and bins |
| psImage | Basic image data structure |
| psKernel | A convolution kernel |
| psList | The psList Linked list structure |
| psListElem | Doubly-linked list element |
| psListIterator | The psList iterator structure |
| psLookupTable | Lookup table structure |
| psMath | The type of a basic data type |
| psMathType | |
| psMemBlock | Book-keeping data for storage allocator |
| psMetadata | Metadata data structure |
| psMetadataItem | Metadata item data structure |
| psMetadataIterator | Metadata iterator |
| psMinimization | A data structure for minimization routines |
| psPixelCoord | Data structure for storing psPixel coordinates |
| psPixels | List of pixel coordinates |
| psPlane | Euclidiean Coordinate System |
| psPlaneDistort | 4D Polynomial Transform |
| psPlaneTransform | 2D Polynomial Transform |
| psPolynomial1D | One-dimensional polynomial |
| psPolynomial2D | Two-dimensional polynomial |
| psPolynomial3D | Three-dimensional polynomial |
| psPolynomial4D | Four-dimensional polynomial |
| psProjection | Parameter set for projection/deprojection |
| psRandom | Data structure for psRandom |
| psRegion | Basic image region structure |
| psScalar | Basic scalar data structure |
| psSphere | Angular Coordinate System |
| psSphereRot | Spherical Rotation Definition |
| psSpline1D | One-Dimensional Spline |
| psStats | This is the generic statistics structure |
| psTime | Definition of psTime |
| psType | The type of a data type |
| psVector | An vector to support primitive types |
| testDescription | Defines a data structure containing test description information |
1.4.2