struct 声明的指针如何初始化

struct 声明的指针怎么初始化
比如我声明了一个struct CBusiness,
CBusiness *c,这个怎么初始化

------解决方案--------------------------------------------------------
c=NULL;
------解决方案--------------------------------------------------------
struct CBusiness

CBusiness *c
初始化都是用c=NULL;
申请空间c = new (ELeave) CBusiness;

析构if(c)
{
delete c;
c=NULL;
}