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  • Question
  • How would you use the function memmove()?


  • Correct Answer
  • #include "memh" #include "alloch" main() { int area; char *dest; char src[] = "Life is the camera and you are the target" "so keep smiling always"; area = sizeof (src); dest = malloc (area); memmove (dest, src, area); printf("\n%s", dest); printf("\n%s",src); } 


  • Programming problems


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    • 1. What would be the output of the following program? main() { char huge * near * far *ptr1; char near * far * huge *ptr2; char far * huge * near *ptr3; printf ("%d%d%d", sizeof (ptr1), sizeof (ptr2), sizeof (ptr3)); }
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    • 2. Point out the error, if any, in the following program. #include "stdarg.h" main() { display ( 4, 12.5, 13.5, 14.5, 44.3); } display(int num, ...) { float c; int j; va_list ptr; va_start (ptr, num); for ( j = 1; j <= num; j++) { c = va_arg ( ptr, float ); printf ("\n%f", c); } }
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    • 3. Point out the error, if any, in the following program. #include "stdio.h" main() { unsigned char; FILE *fp; fp = fopen ("trail", "r"); while (( ch = getc (fp)) ! = EOF) printf ("%c", ch); fclose (fp); }
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    • 4. How would you find the length of each string in the following Program? main() { char *str[] = { "Frogs", "Do", "Not" , "Die" , "They" , "Croak!"}; printf ("%d%d", sizeof (str), sizeof (str[0])); }
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    • 5. What would be the output of the following program? main() { char a[] = "Visual C++"; char *b = "Visual C++"; printf ("\n%d %d", sizeof (a), sizeof (b)); printf ("\n%d %d", sizeof (*a), sizeof (*b)); }
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    • 6. What will be output of following program ? #include int main() { int a = 10; void *p = &a; int *ptr = p; printf("%u",*ptr); return 0; }

    • Options
    • A. 10
    • B. Address
    • C. 2
    • D. Compilation error
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    • 7. What will output when you compile and run the following code? #include struct student { int roll; int cgpa; int sgpa[8]; }; void main() { struct student s = { 12,8,7,2,5,9 }; int *ptr; ptr = (int *)&s; clrscr(); printf( "%d", *(ptr+3) ); getch(); }

    • Options
    • A. 8
    • B. 7
    • C. 2
    • D. Compiler error
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    • 8. C program to find whether a number is palindrome or not.
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    • 9. Write a c program to find out sum of diagonal element of a matrix.
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    • 10. The output of the code below is #include void main() { int i = 0, k; if ( i == 0 ) goto label; for ( k = 0;k < 3; k++ ) { printf( "hin" ); label: k = printf( "%03d", i ); } }

    • Options
    • A. 0
    • B. hi hi hi 0 0 0
    • C. 0 hi hi hi 0 0 0
    • D. 0 0 0
    • Discuss


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