#include <rlplc.h>

Public Member Functions
	rlPlcMem ()

virtual	~rlPlcMem ()

void	rememberState ()

int	intChanged ()

int	floatChanged ()

int	doubleChanged ()

int	intHasIncreased ()

int	floatHasIncreased ()

int	doubleHasIncreased ()

int	intHasDecreased ()

int	floatHasDecreased ()

int	doubleHasDecreased ()

int	deltaInt ()

float	deltaFloat ()

double	deltaDouble ()

void	set (int bit)

void	clear (int bit)

int	isSet (int bit)

int	isClear (int bit)

int	hasBeenSet (int bit)

int	hasBeenCleared (int bit)

Public Attributes
int	i

int	i_old

float	f

float	f_old

double	d

double	d_old

Detailed Description

Definition at line 65 of file rlplc.h.

Constructor & Destructor Documentation

◆ rlPlcMem()

rlPlcMem::rlPlcMem ( )

Definition at line 278 of file rlplc.cpp.

 {
   i     = 0;
   i_old = 0;
   f     = 0.0f;
   f_old = 0.0f;
   d     = 0.0;
   d_old = 0.0;
 }

◆ ~rlPlcMem()

rlPlcMem::~rlPlcMem ( )

virtual

Definition at line 288 of file rlplc.cpp.

289 {

290 }

Member Function Documentation

◆ clear()

void rlPlcMem::clear ( int bit )

Definition at line 373 of file rlplc.cpp.

 {
   i = i & ~bit;
 }

◆ deltaDouble()

double rlPlcMem::deltaDouble ( )

Definition at line 363 of file rlplc.cpp.

 {
   return d - d_old;
 }

◆ deltaFloat()

float rlPlcMem::deltaFloat ( )

Definition at line 358 of file rlplc.cpp.

 {
   return f - f_old;
 }

◆ deltaInt()

int rlPlcMem::deltaInt ( )

Definition at line 353 of file rlplc.cpp.

 {
   return i - i_old;
 }

◆ doubleChanged()

int rlPlcMem::doubleChanged ( )

Definition at line 311 of file rlplc.cpp.

 {
   if(d == d_old) return 0;
   else           return 1;
 }

◆ doubleHasDecreased()

int rlPlcMem::doubleHasDecreased ( )

Definition at line 347 of file rlplc.cpp.

 {
   if(d < d_old) return 1;
   else          return 0;
 }

◆ doubleHasIncreased()

int rlPlcMem::doubleHasIncreased ( )

Definition at line 329 of file rlplc.cpp.

 {
   if(d > d_old) return 1;
   else          return 0;
 }

◆ floatChanged()

int rlPlcMem::floatChanged ( )

Definition at line 305 of file rlplc.cpp.

 {
   if(f == f_old) return 0;
   else           return 1;
 }

◆ floatHasDecreased()

int rlPlcMem::floatHasDecreased ( )

Definition at line 341 of file rlplc.cpp.

 {
   if(f < f_old) return 1;
   else          return 0;
 }

◆ floatHasIncreased()

int rlPlcMem::floatHasIncreased ( )

Definition at line 323 of file rlplc.cpp.

 {
   if(f > f_old)  return 1;
   else           return 0;
 }

◆ hasBeenCleared()

int rlPlcMem::hasBeenCleared ( int bit )

Definition at line 400 of file rlplc.cpp.

 {
   if((i & bit) == 0) // is bit clear ?
   {
     if((i_old & bit) == 0) return 0; // both are clear
     else                   return 1; // old one was set
   }
   return 0;
 }

◆ hasBeenSet()

int rlPlcMem::hasBeenSet ( int bit )

Definition at line 390 of file rlplc.cpp.

 {
   if(i & bit) // is bit set ?
   {
     if(i_old & bit) return 0; // both are set
     else            return 1; // old one was not set
   }
   return 0;
 }

◆ intChanged()

int rlPlcMem::intChanged ( )

Definition at line 299 of file rlplc.cpp.

 {
   if(i == i_old) return 0;
   else           return 1;
 }

◆ intHasDecreased()

int rlPlcMem::intHasDecreased ( )

Definition at line 335 of file rlplc.cpp.

 {
   if(i < i_old) return 1;
   else          return 0;
 }

◆ intHasIncreased()

int rlPlcMem::intHasIncreased ( )

Definition at line 317 of file rlplc.cpp.

 {
   if(i > i_old)  return 1;
   else           return 0;
 }

◆ isClear()

int rlPlcMem::isClear ( int bit )

Definition at line 384 of file rlplc.cpp.

 {
   if(i & bit) return 0;
   else        return 1;
 }

◆ isSet()

int rlPlcMem::isSet ( int bit )

Definition at line 378 of file rlplc.cpp.

 {
   if(i & bit) return 1;
   else        return 0;
 }

◆ rememberState()

void rlPlcMem::rememberState ( )

Definition at line 292 of file rlplc.cpp.

 {
   i_old = i;
   f_old = f;
   d_old = d;
 }

◆ set()

void rlPlcMem::set ( int bit )

Definition at line 368 of file rlplc.cpp.

 {
   i = i | bit;
 }

Member Data Documentation

◆ d

double rlPlcMem::d

Definition at line 72 of file rlplc.h.

◆ d_old

double rlPlcMem::d_old