错误warning C4761:integral size mismatch in argument; conversion supplied；怎么修改?错误程序：#includeusing namespace std;class SimpleCircle{public:\x05SimpleCircle(int *a)\x05{\x05\x05itsRadius=a;\x05}\x05float area(){\x05\x05return (3.1

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错误warning C4761:integral size mismatch in argument; conversion supplied；怎么修改?错误程序：#includeusing namespace std;class SimpleCircle{public:\x05SimpleCircle(int *a)\x05{\x05\x05itsRadius=a;\x05}\x05float area(){\x05\x05return (3.1
错误warning C4761:integral size mismatch in argument; conversion supplied；怎么修改?
错误程序：
#include
using namespace std;
class SimpleCircle
{
public:
\x05SimpleCircle(int *a)
\x05{
\x05\x05itsRadius=a;
\x05}
\x05float area(){
\x05\x05return (3.14*(*itsRadius)*(*itsRadius));
\x05}
\x05float circumference(){
\x05\x05return (3.14*2*(*itsRadius));
\x05}
private:
\x05int *itsRadius;
};
int main()
{
\x05int b=5;
\x05SimpleCircle s(&b);
\x05cout