https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88455
--- Comment #2 from Adam Hirst <adam at aphirst dot karoo.co.uk> ---
Slightly reduced - the issue occurs even in the MAIN program:
program test
implicit none
integer :: a, b, c
character(:), allocatable :: line(:)
a = 1; b = 10; c = 30
allocate( line(a:b), source = repeat(" ",c) )
end program test
...and also if the integers are declared PARAMETER:
program test
implicit none
integer, parameter :: a=1, b=10, c=30
character(:), allocatable :: line(:)
allocate( line(a:b), source = repeat(" ",c) )
end program test
...and even if they're hard-coded into the ALLOCATE call:
program test
implicit none
character(:), allocatable :: line(:)
allocate( line(1:10), source = repeat(" ",30) )
end program test
Yet, as far as I understand the Fortran standard, the string `line` here should
be considered fully allocated by the ALLOCATE statement, therefore I think
the warning is spurious.
