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I am trying to test the Fortran 2003 feature that allows to add an element to an array. Consider the following code:

program test

implicit none
integer :: i
integer, parameter :: n=6, j=2
integer, allocatable :: inx(:)

open(3, file='check.dat')

allocate(inx(0:1)); inx=0

do i=0,1
 write(3,*) i, inx(i)
end do


do i=1,n
 inx=[inx,i+j]
end do

do i=0,n
 write(3,*) i, inx(i)
end do


end program test

I get the following runtime error:

At line 22 of file test.f90
Fortran runtime error: Index '0' of dimension 1 of array 'inx' below lower bound of 1

I explicitly set inx(0:1), so that inx's index starts from zero ( I want inx(0:some number)) but it seems that's it's reallocating from 1?

geom
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0 Answers0