Confused about wild pointer

[Khan Baba]

Hello Guys,

I am learning the C programming language. In which the the pointer concept sound quit complex to understand. I want to know about the 'wild pointer'. I don't know what is the exact use of this type of pointer. If will be great if anybody provide some details about the 'wild pointer' with suitable example. I would really appreciate your any help over 'wild pointer'

[Modifier]

Hi,

In C programming the 'wild pointers' are also referred as 'dangling pointer'. In this type of pointer contains the location of the storage which is no longer allocated. Wild pointers created only if a pointer is used before to initialize the state. This type of mechanism also valid in some other programming languages. Basically the wild pointer is used to store the transient objects of the program.

[Katty]

Hi friend,

Refer following example which will demonstrate you the use of 'Wild pointer':

{
 char *cp1   NULL;

 {
  char c1;
  cp1= &c;
 } 
} 

{
 char *cp1,   malloc ( A_CONST );

 free ( cp1 );  /* cp now becomes a wild pointer */
 cp1 = NULL; 
 
}

[kelfro]

Wild pointer used when corruption of the unrelated data occurs. And this may lead to the system instabilities. Wild pointers of C language is normally created by removal of the necessary initialization before it's utilization. This indecent always occurs because of the initialization jumping and can not be removed. In short the which doesn't enforce the start initialization is always called as 'wild pointer'. I hope this information will help you to aware about the wild pointer.

[opaper]

The wild pointer is special type of pointer. This type of pointer is rarely used in the program. In following example the I have used the concept of wild pointer. Here 'px1' as well as the 'ax1' is declared as wild pointer.

void funx1( ax1 * px1)
{
int xi = px1->ix;
delete px1;
px1 = 0;
}

void funx2( ax1* px1)
{
int ix = px1->ix;
}

void main()
{
ax1* px1 = new ax1;
ax1* px2 = px1;
fun1( px1 );
funx2( px2 );
}

[MindSpace]

Hi friend,

See something below can help you to understand wild pointer declaration :

{
int* pzo1 = new int( 9 );

int* pzo2 = pzo1;

pzo1 = 0;

}