static char *print_number( cJSON *item )
static int update(printbuffer *p)
 {
 	char *str;
	if (!p || !p->buffer) return 0;
	str=p->buffer+p->offset;
	return p->offset+strlen(str);
}
 
/* Render the number nicely from the given item into a string. */
static char *print_number(cJSON *item,printbuffer *p)
{
	char *str=0;
	double d=item->valuedouble;
	if (d==0)
	{
		if (p)	str=ensure(p,2);
		else	str=(char*)cJSON_malloc(2);	/* special case for 0. */
		if (str) strcpy(str,"0");
	}
	else if (fabs(((double)item->valueint)-d)<=DBL_EPSILON && d<=LLONG_MAX && d>=LLONG_MIN)
	{
		if (p)	str=ensure(p,64);
		else	str=(char*)cJSON_malloc(64);
		if (str)	sprintf(str,"%lld",(long long) item->valueint);
	}
	else
	{
		if (p)	str=ensure(p,64);
		else	str=(char*)cJSON_malloc(64);	/* This is a nice tradeoff. */
		if (str)
		{
			if (fpclassify(d) != FP_ZERO && !isnormal(d))				sprintf(str,"null");
			else if (fabs(floor(d)-d)<=DBL_EPSILON && fabs(d)<1.0e60)	sprintf(str,"%.0f",d);
			else if (fabs(d)<1.0e-6 || fabs(d)>1.0e9)					sprintf(str,"%e",d);
			else														sprintf(str,"%f",d);
		}
 	}
 	return str;
 }

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.