Run-Time Check Failure #2 - Stack around the variable.

Zaixu (4)
I keep getting this error. "Run-Time Check Failure #2 - Stack around the variable 'temperatureArray' was corrupted." But i have another one programmed nearly like that one, however that one works.


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float Temperature::readValue(void)
{


	if(onOff == 1)
	{
		char temperatureArray[]="";
		timerPtr->start(500);					
		while (!timerPtr->checkForTimeout());
												
		comTemperaturePtr->send("T",1);

		while (comTemperaturePtr->inWatingBuffer() < 1);	

		comTemperaturePtr->receive(temperatureArray);		

		currentTemperature = (float)atof(temperatureArray);
	}
	else
	cout << "Error";

	return (currentTemperature);
}


The one that works:

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char sendDataArray[]="P\r\n";			
	bool status;									
	float puls;

	status = serialobj.open(5, 38400);					
	while(1)
	{

	if (status)												
	{
		char pulsDataArray[]="";
		timerobj.start(500);								
		while (!timerobj.checkForTimeout());
											
		serialobj.send(sendDataArray, strlen(sendDataArray));

		while (serialobj.inWatingBuffer() < 1);				

		serialobj.receive(pulsDataArray);					

		puls = (float)atof(pulsDataArray);					


								
		cout << puls;
									
	}
	else						
	{
		cout << "puls port ikke " <<  "\x86" << "ben";		
	}

Last edited on
Athar (4466)
Both versions are incorrect. char pulsDataArray[]=""; creates a char array with just one element.
It is equivalent to char pulsDataArray[1]={'\0'};
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