?? ch9_11.cpp
字號:
//**********************
//** ch9_11.cpp **
//**********************
#include <iostream.h>
bool CircleArea()
{
double* pd=new double;
if(!pd){
cout <<"error memory allocation!";
return true;
}
double& rd=*pd;
cout <<"the radius is: ";
cin >>rd;
cout <<"the area of circle is " <<rd*rd*3.14 <<endl;
delete &rd;
return false;
}
void main()
{
if(CircleArea())
cout <<"program failed.\n";
else
cout <<"program successed.\n";
}
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