utils.cpp File Reference

#include "utils.h"

Functions
double	frexp (const Complex &c, int *i)
	Gives exponent of the largest number: either imaginary or real part.
void	FPE_ExceptionHandler (int)
	Exception handler - will even trap errors in the fortran portion. More...
int	theta (double a)
	Standard theta function: 1 is a>0, 0 otherwise.
void	outputCharacteristics (int n)
	Sets number of decimal places to display in scientific output.
double	toleranceCheck (double a, double b)
	Finds fractional difference between |a| and |b|.
void	printRow (ostream &out, double x)
bool	testNan (double f)
bool	close (double m1, double m2, double tol)
bool	close (Complex m1, Complex m2, double tol)
	Requres that both the real and imaginary parts are close.

Detailed Description

• Project: SOFTSUSY
• Author: Ben Allanach
• Manual: hep-ph/0104145, Comp. Phys. Comm. 143 (2002) 305
• Webpage: http://hepforge.cedar.ac.uk/softsusy/

Function Documentation

close()

bool close	(	double	m1,
		double	m2,
		double	tol
	)

Checks if ABSOLUTE (or squared) values are closer than tol, or both numbers are smaller than EPSTOL

FPE_ExceptionHandler()

void FPE_ExceptionHandler

(

int

nErrType

)

Exception handler - will even trap errors in the fortran portion.

< This reverts back to softsusy code!

printRow()

void printRow	(	ostream &	o,
		double	x
	)

Outputs a space if greater than zero, a minus otherwise. Useful for outputting negative numbers in rows

testNan()

bool testNan

(

double

f

)

Returns true if f's a nan. Unfortunately, the behaviour of this function is not standardised across all platforms yet.