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1. 

Point out the error in the program. 

#include<stdio.h>
#define MAX 128

int main()
{
    char mybuf[] = "India";
    char yourbuf[] = "BIX";
    char *const ptr = mybuf;
    *ptr = 'a';
    ptr = yourbuf;
    return 0;
}

A. Error: unknown pointer conversion
B. Error: cannot convert ptr const value
C. No error
D. None of above
2. 

Point out the error in the program (in Turbo-C). 

#include<stdio.h>
#define MAX 128

int main()
{
    const int max=128;
    char array[max];
    char string[MAX];
    array[0] = string[0] = 'A';
    printf("%c %c\n", array[0], string[0]);
    return 0;
}

A. Error: unknown max in declaration/Constant expression required
B. Error: invalid array string
C. None of above
D. No error. It prints A A
3. 

Point out the error in the program. 

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

union employee
{
    char name[15];
    int age;
    float salary;
};
const union employee e1;

int main()
{
    strcpy(e1.name, "K");
    printf("%s", e1.name);    
    e1.age=85;
    printf("%d", e1.age);
    printf("%f", e1.salary);
    return 0;
}

A. Error: RValue required
B. Error: cannot modify const object
C. Error: LValue required in strcpy
D. No error
4. 

Point out the error in the program. 

#include<stdio.h>
const char *fun();

int main()
{
    char *ptr = fun();
    return 0;
}
const char *fun()
{
    return "Hello";
}

A. Error: Lvalue required
B. Error: cannot convert 'const char *' to 'char *'.
C. No error and No output
D. None of above
5. 

Point out the error in the program. 

#include<stdio.h>

int main()
{
    const int x;
    x=128;
    printf("%d\n", x);
    return 0;
}

A. Error: unknown data type const int
B. Error: const variable have been initialised when declared.
C. Error: stack overflow in x
D. No error