How to return an floating point array

Question

I need a function that creates an array with some floating points.

double * my_function( )
{
    static double arr[10] = {20, 21, 22, 23, 24, 25, 26, 27, 28, 29};

    return arr;
}


int main ()
{
    double *first_pos;
    int i;

    first_pos = my_function();
    for ( i = 0; i < 10; i++ )
    {
        printf( "%d", *(first_pos + i));
    }

return 0;
}

This prints some "random" numbers.

I'm a confused about pointers/arrays!

John Kugelman · Accepted Answer · 2013-11-14 22:07:08Z

6

Your pointer/array usage is fine.

printf("%f", *(p + i));

Print doubles with the %f specifier. %d is for ints.

answered Nov 14, 2013 at 22:07

John Kugelman

364k70 gold badges555 silver badges600 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

J Eti · Accepted Answer · 2016-08-25 20:34:31Z

0

I think it is %lf (long float) for doubles, and %f for normal floats

like this

  first_pos = my_function();
  for ( i = 0; i < 10; i++ ){
    printf( "%lf\n", *(first_pos + i));
  }

the output it gives me is

answered Aug 25, 2016 at 20:34

J Eti

3021 gold badge7 silver badges14 bronze badges

1 Comment

renato vitolo Over a year ago

This is an old question, however all (useful) contributions are welcome!

Collectives™ on Stack Overflow

How to return an floating point array

2 Answers 2

Comments

1 Comment

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Linked

Related