Using delete
There are two syntactic variants for the delete operator: one for single objects and the other for arrays of objects. The following code fragment shows how these differ:
// expre_Using_delete.cpp
struct UDType
{
};
int main()
{
// Allocate a user-defined object, UDObject, and an object
// of type double on the free store using the
// new operator.
UDType *UDObject = new UDType;
double *dObject = new double;
// Delete the two objects.
delete UDObject;
delete dObject;
// Allocate an array of user-defined objects on the
// free store using the new operator.
UDType (*UDArr)[7] = new UDType[5][7];
// Use the array syntax to delete the array of objects.
delete [] UDArr;
}
The following two cases produce undefined results: using the array form of delete (delete [ ]) on an object and using the nonarray form of delete on an array.