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Programming in C - Arays

Avatto > > UGC NET COMPUTER SCIENCE > > PRACTICE QUESTIONS > > Programming Languages and Computer Graphics > > Programming in C > > Arays

16. If storage class is missing in the array definition, by default it will be taken to be

  • Option : D
  • Explanation :
    If it is coming within a function, the storage class will be taken to be automatic. otherwise external
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17. Consider the array definition
int num [10] = {3, 3, 3};
Pick the Correct answers

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18. Consider the following type definition.
typedef char x[10];
x myArray[5];
What will sizeof(myArray) be? (Assume one character occupies 1 byte)

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19. While passing an array as an actual argument, the function call must have the array name

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20. The following program
main( )
{
static int a[ ] = { 7, 8, 9 } ;
printf( "%d", 2[ a ] + a[ 2 ] ) ;
}

  • Option : D
  • Explanation :
    a[2] will be converted to *(a + 2).
    *(a + 2) can as well be written as *(2 + a ) .
    *(2 + a ) is nothing but 2 [a] .
    a [2] is essentially same as 2 [a] which is same as * ( 2 + a ).
    So, it prints 9 + 9 = 18. Some of the modem compilers don't accept 2[a].
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