class data 
{ 
 int* value; 
public: 
 data(int num){ 
 if(num > 0) 
  value = (int*)malloc(sizeof(int)* num); 
 } 
 
 ~data(){ 
 if(value) 
  free(value); 
 } 
}; 
 
void process() 
{ 
 data m(10); 
 data p = m; 
} 

21: data m(10); 
0040105D push 0Ah 
0040105F lea  ecx,[ebp-10h] 
00401062 call @ILT+15(data::data) (00401014) 
00401067 mov  dword ptr [ebp-4],0 
22: data p = m; 
0040106E mov  eax,dword ptr [ebp-10h] 
00401071 mov  dword ptr [ebp-14h],eax 
23: } 
00401074 lea  ecx,[ebp-14h] 
00401077 call @ILT+5(data::~data) (0040100a) 
0040107C mov  dword ptr [ebp-4],0FFFFFFFFh 
00401083 lea  ecx,[ebp-10h] 
00401086 call @ILT+5(data::~data) (0040100a) 
0040108B mov  ecx,dword ptr [ebp-0Ch] 
0040108E mov  dword ptr fs:[0],ecx 
00401095 pop  edi 
00401096 pop  esi 
00401097 pop  ebx 
00401098 add  esp,54h 
0040109B cmp  ebp,esp 
0040109D call __chkesp (004015b0) 
004010A2 mov  esp,ebp 
004010A4 pop  ebp 
004010A5 ret 

class data 
{ 
 int* value; 
 data(const data&) ; 
public: 
 data(int num){ 
 if(num > 0) 
  value = (int*)malloc(sizeof(int)* num); 
 } 
 
 ~data(){ 
 if(value) 
  free(value); 
 } 
}; 

class data 
{ 
  int* value; 
  int number; 
public: 
  data(int num){ 
    if(num > 0) 
      value = (int*)malloc(sizeof(int)* num); 
    number = num; 
  } 
 
  data(const data& d){ 
    if(NULL != d.get_ptr()) 
      value = (int*) malloc(sizeof(int)* d.get_number()); 
    number = d.get_number(); 
    memmove(value, d.get_ptr(), sizeof(int)* number); 
  } 
 
  ~data(){ 
    if(value) 
      free(value); 
  } 
 
  int* get_ptr() const{ return value;} 
  int get_number() const {return number;} 
};