Unity 1.0
Parser for unit strings
Data Fields
unit_struct Struct Reference

A single parsed unit. More...

#include <unity.h>

Collaboration diagram for unit_struct:
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Data Fields

char is_quoted_unit
 True (non-zero) if this unit was a ‘quoted’ unit.
struct unit_structnext
 A pointer to the next unit in the sequence.
float power
 The power to which the unit is raised.
UnitTypes type
 Indicates which type of unit this is.
FunctionApplication f
 A contained function-of unit.
SimpleUnit u
 A contained simple unit.

Detailed Description

A single parsed unit.

This can be either a simple unit (corresponding to, for example, ‘MHz’) or a function of a sequence of units (corresponding to, for example, log(V^2/mHz)).

A unit can be ‘quoted’, indicating that it is to be parsed as an ‘unknown’ unit even if its name matches that of a ‘known’ unit (for example, 'B' is a unit of ‘B’, and neither byte nor Bel, and the 'furlong' is a ‘furlong’ and not, as it would otherwise be parsed, a femto-urlong). This mechanism is syntactically permitted only in the VOUnits syntax, and is used only for output and validity checks (see unity_check_unit), and not for processing. All ‘quoted’ units are classed as not ‘recognised’.


Field Documentation

True (non-zero) if this unit was a ‘quoted’ unit.

This only makes sense for VOUnits units, and is used only when writing out units rather than in any processing.

float power

The power to which the unit is raised.

The specification mm^(-2) will result in a power of ‘-2’.

Indicates which type of unit this is.

If this is of type simple_unit_type, then the ‘u’ struct will be valid; if it is of type function_application_type, then ‘f’ will be valid.


The documentation for this struct was generated from the following file:
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