Thread: A function to Clear String.

I Need Clear a String By Function but compiler sends a Warning: Suspicious Pointer Conversion.

Code:

void SetNull (char **pString){
	int iCont, iLen;
	
	iLen = strlen (pString);
	for (iCont=0; iCont<iLen; iCont++)
		pString [iCont] = NULL;
	
	pString [iCont]	= '\O';
}

....

int VcomCmdUser(TCPREADDATA *p)
{ 
        SetNull (&p->ReadUartChar);
}

You only need to define it like so

Code:

/*
@param in/out - pcs - string to clear
Pre-condition: pcs is a writable C-string.
Post-condition: pcs[0] == '\0'
*/
void ClearStr ( char * pcs )
{
   *pcs = '\0';
}

as a C-string is any number of characters immediately followed by a zero.

why char** as parameter type? use char* or dereference pString (*pString)

Originally Posted by citizen

You only need to define it like so

Code:

/*
@param in/out - pcs - string to clear
Pre-condition: pcs is a writable C-string.
Post-condition: pcs[0] == '\0'
*/
void ClearStr ( char * pcs )
{
   *pcs = '\0';
}

as a C-string is any number of characters immediately followed by a zero.

Goooood!
Thanks!