Array in Fortran format

Question

I have below code:

program test_random_seed
  implicit none
  real*16:: n , j
  real, Dimension(1,10) :: i

  i = [1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10]
  
  write(*,101) i
    pause
101 format(F0.5)    
    end program test_random_seed

I got this error message:

error 6366: The shapes of the array expressions do not conform. [I]

How can I correct it?

Welcome. Please read How to Ask. You need to explain what is wrong with your code. Are there any error messages? Are the results wrong? Please describe what is the code supposed to do and your problem. — Vladimir F Героям слава
– Vladimir F Героям слава, Commented Nov 25, 2021 at 14:42
BTW, do not use pause, it is a deleted Fortran feature without a clear meaning. If you want to wait for pressing Enter, you can use read *,. — Vladimir F Героям слава
– Vladimir F Героям слава, Commented Nov 25, 2021 at 14:43
error 6366: The shapes of the array expressions do not conform. [I] — nima sahakie
– nima sahakie, Commented Nov 25, 2021 at 14:45
Use edit to edit important information into the question. Do not use comments. — Vladimir F Героям слава
– Vladimir F Героям слава, Commented Nov 25, 2021 at 14:46
What are you trying to do with this code? You've declared i to be a rank-2 array and assigning to it a rank-1 array. You need these to match - but why have you chosen i to be rank-2 but with extent just 1 in one dimension? — francescalus
– francescalus, Commented Nov 25, 2021 at 14:52

Vladimir F Героям слава · Accepted Answer · 2021-11-25 14:50:13Z

2

You are assigning a 1D array literal to 2D 1x10 array.

You can fix it, by slicing the array and assigning to a subarray:

real, Dimension(1,10) :: i

i(1,:) = [1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10]

Or you can declare the array as a 1D array:

real, Dimension(10) :: i

i = [1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10]

The solution to choose depends on your ultimate goal.

We have several other questions with the same error message, but a slightly different error that caused it:
Fortran Error # 6366: The shapes of the array expressions do not conform
"Error: The shapes of the array expressions do not conform"

The main issue is the same, the array shapes (number of elements in each dimension and the number of dimensions) must agree.

edited Nov 25, 2021 at 14:50

answered Nov 25, 2021 at 14:47

Vladimir F Героям слава

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3 Comments

Vladimir F Героям слава Over a year ago

Well, I do not know what is the ultimate intention.

nima sahakie Over a year ago

Dear Vladimir, do you know what is RANDOM_SEED syntax?

Vladimir F Героям слава Over a year ago

@nimasahakie I do, but this is not the place to write about that. We have many questions and answers that explain it. I would suggest starting with empty call ranom_seed() or with call random_init(.false., .true.) instead. If you have some actual problem, please open a new question and show your code there.

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