sym to fortran: matrix index

Hello

'fortran' tranlates all number in sym expression to Fortran double precision number (e.g. 1.0D0) even for array index. I can not find a way to declare a matrix with symbolic dimensions in Matlab, so I declare them as functions. For example:

syms i integer
syms x(i)
fortran(x(i-1))

returns

ans =

    '      t0 = xx(ii-1.0D0)'

which is rather unconvenient. Is there any way to circumvent this problem?

Thank you.

Carlos SPAIN