Linux Startup and Shutdown Interview Question:

Program given below will allocate the memory of ___ bytes for pointer "ptr".

#include<stdio.h>
#include<stdlib.h>

int main()
{
int ptr;
ptr = (int)malloc(sizeof(int)4);
ptr = realloc(ptr,sizeof(int)2);
return 0;
}
a) 2
b) 4
c) 8
d) none of the mentioned

Submitted by: Murtaza

c) 8
Explanation:
We can also use the realloc() to make memory block smaller.
Submitted by: Murtaza

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Linux Startup and Shutdown Interview Question:

Program given below will allocate the memory of ___ bytes for pointer "ptr".

#include<stdio.h>
#include<stdlib.h>

int main()
{
int ptr;
ptr = (int)malloc(sizeof(int)4);
ptr = realloc(ptr,sizeof(int)2);
return 0;
}
a) 2
b) 4
c) 8
d) none of the mentioned

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Linux Startup and Shutdown Interview Question:

Program given below will allocate the memory of ___ bytes for pointer "ptr". #include<stdio.h> #include<stdlib.h> int main() { int *ptr; ptr = (int*)malloc(sizeof(int)*4); ptr = realloc(ptr,sizeof(int)*2); return 0; }a) 2b) 4c) 8d) none of the mentioned

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Program given below will allocate the memory of ___ bytes for pointer "ptr".

#include<stdio.h>
#include<stdlib.h>

int main()
{
int ptr;
ptr = (int)malloc(sizeof(int)4);
ptr = realloc(ptr,sizeof(int)2);
return 0;
}
a) 2
b) 4
c) 8
d) none of the mentioned