DoubleMath.h File Reference

Contains important function(s) to compare double numbers. More...

#include <math.h>

Go to the source code of this file.

Defines
#define	MATH_H
	Inclusion guard.
#define	DOUBLEMATH_H
	Inclusion guard.
Functions
bool	doubleEquality (double d1, double d2, double eps=1E-9)

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Detailed Description

Contains important function(s) to compare double numbers.

Author:

Rikard Lundmark

Definition in file DoubleMath.h.

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Function Documentation

bool doubleEquality	(	double	d1,
		double	d2,
		double	eps = 1E-9
	)		[inline]

Parameters:

d1	Number to compare with d2.
d2	Number to compare with d1.
eps	Tolerance.Compares if two double numbers d1 and d2 has a relative difference smaller than a small number eps.

Definition at line 14 of file DoubleMath.h.

Referenced by InterestingDecayIsomer::operator<(), LevelRecord::operator==(), InterestingDecayIsomer::operator==(), and Record_TEST::testLevelHalfLife().

{
  if((d1+d2)!=0)
    return fabs(d1-d2)/(fabs(d1+d2))<=eps;
  else
    return (d1-d2)==0;
}