CODEWITHSUNDEEP
arraysfortran
Yunfei Shi
Yunfei Shi

Reputation: 51

Fortran Error # 6366: The shapes of the array expressions do not conform

I encountered this error message while compiling one of my Fortran codes. I found a few similar posts regarding the same error, but none of the situations in those posts apply to my case. I would appreciate any answer or help offered here. Thanks in advance!

(The code is really long, so I only cut out those sentences that are relevant.)

===================================================

DIMENSION A(20), COORDS(3)
REAL  B, C, X, Y, Z

B = 1.0

X = COORDS(1)
Y = COORDS(2)
Z = COORDS(3)

DO I = 1,3
  A(I) = COORDS(I)
END DO

C = SQRT ( X**2.0 + Y**2.0 ) + B

===================================================

The error message points to the last line: error #6366: The shapes of the array expressions do not conform. [C]

If I comment out + B, then no error occurs.

I just don't get it. The elements of the array COORDS are passed on to scalar variables X, Y, Z. How come they and B (or C) are not conformable?

I know there must be something I don't quite understand about Fortran array. Please point out my mistake if you catch any.

Thanks a lot!

Justin

Upvotes: 5

Views: 19109

Answers (1)

M. S. B.
M. S. B.

Reputation: 29401

Is there a dimension statement elsewhere in the code for any of these variables? The error message seems to point to C; that commenting out +B eliminates the error seems to more solidly point to B.

This is why I like to have all characteristics of a variable declared on a single line. e.g.,

real, dimension (20) :: a

instead of:

dimension A(20)
real A

Upvotes: 3

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