Units< M, L, T, K, I > Class Template Reference

Unit Checking/tracking Class. More...

#include <units.h>

List of all members.

Public Member Functions
	Units (const Units &u)
const Units &	operator= (const Units &u)
Units	operator * (double d) const
Units	operator/ (double d) const
const Units &	operator *= (double d)
const Units &	operator/= (double d)
Units	operator+ (const Units &u) const
Units	operator- (const Units &u) const
Units &	operator+= (const Units &u)
Units &	operator-= (const Units &u)
Units	operator- () const
bool	operator== (const Units &u) const
	Equality.
bool	operator!= (const Units &u) const
	Inequality.
bool	operator< (const Units &u) const
	Less-than.
bool	operator<= (const Units &u) const
	Less-or-equal.
bool	operator> (const Units &u) const
	Greater-than.
bool	operator>= (const Units &u) const
	Greater-or-equal.
	operator double () const
	Cast to double.
template<int m, int l, int t, int k, int i> Units< M-m, L-l, T-t, K-k, I-i >	operator/ (const Units< m, l, t, k, i > &u2) const
	Division.

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Detailed Description

template<int M, int L = 0, int T = 0, int K = 0, int I = 0>
class Units< M, L, T, K, I >

Unit Checking/tracking Class.

Purpose: Template class to create a 'Units' data type.

• It checks that units are correct at *COMPILE* time.
• It hides conversion constants.
• It enforces self documenting code.

Original Author: Christopher Rettig ( rettigcd@bigfoot.com )
(This is not the original version)

Dev platform: . Win2k -- gcc version 3.3.1 (cygming special)

Tested on: . NT4.0 -- VC++ 6.0 . Win2k -- gcc version 3.2.3 (mingw special 20030504-1) . Linux -- gcc version 3.2.2 20030222 (Red Hat Linux 3.2.2-5)

Todo:

Get the units stuff working with a specific units-tracking flag. Should be possible to say that all pressures get output in MPa, all temperatures in °C, etc etc.

See also:

http://www.embedded.com/shared/printableArticle.jhtml?articleID=9900094
http://www.embedded.com/code/2001code.htm
http://www.experts-exchange.com/Programming/Programming_Languages/Cplusplus/Q_21215508.html
http://www.experts-exchange.com/Programming/Programming_Languages/Cplusplus/Q_21199495.html

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Member Function Documentation

template<int M, int L = 0, int T = 0, int K = 0, int I = 0> Units< M, L, T, K, I >::operator double (   )  const [inline]

Cast to double. Only defined for dimensionless values!

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

• units.h

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