What is meaning of suspicious pointer conversion in c?

Answer:

When you will assign a particular type pointer variable with address of different type, such type of automatic type conversion is known as suspicious type conversion. In turbo c compiler it is not cause of any compilation error but compiler will send one warning message: suspicious pointer conversion. So we should avoid suspicious pointer conversion.



 Examples of suspicious pointer conversion:

#include<stdio.h>

void main(){

    int i=10;

int *p,**q;

float *r;    

q=p;      //suspicious pointer conversion

q=&i;   //suspicious pointer conversion

p=r;    //suspicious pointer conversion

p=(int **)10;   //suspicious pointer conversion

printf("%d %d %d",*p,**q,*r);

}

Avoid writing above code that way. You may get undesired results. Write above code in the following manner:

#include<stdio.h>

void main(){

    int i=10;

int *p,**q;

float *r;    

q=&p;    // or q=(int **)p; 

//Note. Both are different statement, change according to requirement. 

q=(int **)&i;  

p=(int *)r;   

p=(int *)10;  

printf("%d %d %d",*p,**q,*r);

}