C Programming - Const - Discussion
Discussion Forum : Const - Find Output of Program (Q.No. 3)
3.
What will be the output of the program?
#include<stdio.h>
int fun(int **ptr);
int main()
{
int i=10;
const int *ptr = &i;
fun(&ptr);
return 0;
}
int fun(int **ptr)
{
int j = 223;
int *temp = &j;
printf("Before changing ptr = %5x\n", *ptr);
const *ptr = temp;
printf("After changing ptr = %5x\n", *ptr);
return 0;
}
Discussion:
23 comments Page 2 of 3.
Ghengha said:
1 decade ago
#include<stdio.h>
int fun(const int **ptr);//*
int main()
{
int i=10;
const int *ptr = &i;
fun(&ptr);
return 0;
}
int fun(const int **ptr)//*
{
int j = 223;
int *temp = &j;
printf("Before changing ptr = %5x\n", *ptr);
*ptr = temp;
printf("After changing ptr = %5x\n", *ptr);
return 0;
}
int fun(const int **ptr);//*
int main()
{
int i=10;
const int *ptr = &i;
fun(&ptr);
return 0;
}
int fun(const int **ptr)//*
{
int j = 223;
int *temp = &j;
printf("Before changing ptr = %5x\n", *ptr);
*ptr = temp;
printf("After changing ptr = %5x\n", *ptr);
return 0;
}
Rahul said:
10 years ago
How did this happen?
Prakash said:
9 years ago
Yes, @Ghengha's answer is right and the result will come as,
Before changing ptr = 29ff0c and after change ptr = 29fed8.
Before changing ptr = 29ff0c and after change ptr = 29fed8.
Arshita said:
9 years ago
How will the result come as ptr=29ff0c ptr=29fed8 how it comes?
Can anyone explain me?
Can anyone explain me?
Siva said:
9 years ago
Can anyone explain to me?
How will the result come ptr=29ff0c ptr=29fed8?
How will the result come ptr=29ff0c ptr=29fed8?
Kavya said:
9 years ago
How to rectify the error? Anyone help me.
Uma said:
8 years ago
Can anyone tell what does this **ptr here?
Does this tell the address of address?
Does this tell the address of address?
Babu said:
8 years ago
What is the meaning of %5x ? what type of format specifier is this?
Prathyusha said:
7 years ago
In my ubuntu os, error: \'ptr\' redeclared as different kind of symbol
puzzle4.c:11:15: note: previous definition of \'ptr\' was here
int fun(int **ptr)
Can anyone help me to solve this?
puzzle4.c:11:15: note: previous definition of \'ptr\' was here
int fun(int **ptr)
Can anyone help me to solve this?
Ramana said:
6 years ago
In the function defination **ptr is integer type and it is redeclared as const int *. So it will come error as ptr is redeclared as different kind of symbol.
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