SubDetHitStatistics::OverflowControlledRef Class Reference

A simple class to retrofit overflow protection into the existing code. More...

#include <SubDetHitStatistics.h>

Collaboration diagram for SubDetHitStatistics::OverflowControlledRef:

Public Member Functions
	OverflowControlledRef (unsigned char &c)
	constructor from a ref to the storage we control
	operator unsigned int () const
	conversion to a number
unsigned int	value () const
OverflowControlledRef	operator= (unsigned int rhs)
	protected assignment
OverflowControlledRef	operator++ ()
	protected (prefix) increment
OverflowControlledRef	operator+= (unsigned int rhs)
	protected add-to

Static Public Attributes
static const unsigned int	OVERFLOW_VALUE = 255

Private Attributes
unsigned char *	m_p

Detailed Description

A simple class to retrofit overflow protection into the existing code.

The intention is not to provide a full-blown "tiny int" facility but rather a class that is sufficiently functional to compile existing code in other packages without modifications.

Definition at line 43 of file SubDetHitStatistics.h.

Constructor & Destructor Documentation

OverflowControlledRef()

SubDetHitStatistics::OverflowControlledRef::OverflowControlledRef ( unsigned char & c )

inline

constructor from a ref to the storage we control

Definition at line 49 of file SubDetHitStatistics.h.

: m_p(&c) {}

Member Function Documentation

operator unsigned int()

SubDetHitStatistics::OverflowControlledRef::operator unsigned int ( ) const

inline

conversion to a number

Definition at line 52 of file SubDetHitStatistics.h.

{ return *m_p; }

operator++()

OverflowControlledRef SubDetHitStatistics::OverflowControlledRef::operator++ ( )

inline

protected (prefix) increment

Definition at line 59 of file SubDetHitStatistics.h.

{ unsigned int tmp = 1 + *m_p; *m_p = (tmp > OVERFLOW_VALUE) ? OVERFLOW_VALUE : tmp; return *this; }

operator+=()

OverflowControlledRef SubDetHitStatistics::OverflowControlledRef::operator+= ( unsigned int rhs )

inline

protected add-to

Definition at line 62 of file SubDetHitStatistics.h.

                                                       {
      unsigned int tmp = *m_p + rhs;
      *m_p = ((tmp > OVERFLOW_VALUE)
          ||(tmp < rhs)/*protection agains overflowing tmp */
          ) ? OVERFLOW_VALUE : tmp;
      return *this;
    }

operator=()

OverflowControlledRef SubDetHitStatistics::OverflowControlledRef::operator= ( unsigned int rhs )

inline

protected assignment

Definition at line 56 of file SubDetHitStatistics.h.

{ *m_p = (rhs > OVERFLOW_VALUE) ? OVERFLOW_VALUE : rhs; return *this; }

value()

unsigned int SubDetHitStatistics::OverflowControlledRef::value ( ) const

inline

Definition at line 53 of file SubDetHitStatistics.h.

{ return *m_p; }

Member Data Documentation

m_p

unsigned char* SubDetHitStatistics::OverflowControlledRef::m_p

private

Definition at line 44 of file SubDetHitStatistics.h.

OVERFLOW_VALUE

const unsigned int SubDetHitStatistics::OverflowControlledRef::OVERFLOW_VALUE = 255

static

Definition at line 46 of file SubDetHitStatistics.h.

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

• SubDetHitStatistics.h