On 10/13/24 1:45 PM, o1bigtenor via Dng wrote:
> Greetings
>
> (using gcc compiler - - just in case that makes a difference
> book is 'Modern C')
>
> program is :
>
> /* This may look like nonsense, but really is -*- mode: C -*- */
> #include <stdlib.h>
> #include <stdio.h>
>
> /* The main thins that is program does. */
> int main(void) {
> //Declarations
> double A[5] = {
> [0] = 9.0,
> [1] = 2.9,
> [4] = 3.E+25,
> [3] = .00007,
> };
>
> //Doing some work
> for (size_t i=0; i < 5; ++i) {
> printf("element_%zu_is_%g,_\tits_square_is_%g\n",
> i,
> A[i],
> A[i]*A[i]);
> }
>
> return EXIT_SUCCESS;
> }
>
> When I run it I'm getting :
>
> $ ./firstprogram
> element_0_is_9,_ its_square_is_81
> element_1_is_2.9,_ its_square_is_8.41
> element_2_is_0,_ its_square_is_0
> element_3_is_7e-05,_ its_square_is_4.9e-09
> element_4_is_3e+25,_ its_square_is_9e+50
>
> I don't think all the underscores are supposed to be there - - - what
> did I do wrong?
It's been a while since I used C, but... you have underscores in your
printf call, so they are being treated as literals and being printed.
Change those underscores to spaces, and I think you should be OK.
Marc