# libqalculate/Unit.h File Reference

`#include <libqalculate/ExpressionItem.h>`
`#include <libqalculate/includes.h>`

## Classes
class | Unit
| A unit for measurement. More...
class | AliasUnit
| An unit with relation to another unit. More...
class | AliasUnit_Composite
| A subunit in a CompositeUnit. More...
class | CompositeUnit
| A unit consisting of a number of other units. More...
## Enumerations
enum | UnitSubtype { SUBTYPE_BASE_UNIT, SUBTYPE_ALIAS_UNIT, SUBTYPE_COMPOSITE_UNIT }
| Type of unit. More...

## Detailed Description

## Enumeration Type Documentation

enum UnitSubtype

Type of unit.

Enumerator:

  SUBTYPE_BASE_UNIT | class Unit
  SUBTYPE_ALIAS_UNIT | class AliasUnit
  SUBTYPE_COMPOSITE_UNIT | class CompositeUnit