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Manual Reference Pages  - is_iostat_end (3)

NAME
is_iostat_end(3f) - [FORTRAN:INTRINSIC] Test for end-of-file value

SYNTAX
function is_iostat_end(i) 

    logical            :: is_iostat_end (i)
    integer,intent(in) :: i

DESCRIPTION
is_iostat_end tests whether an variable has the value of the I/O status "end of file". The function is equivalent to comparing the variable with the iostat_end parameter of the intrinsic module [[iso_fortran_env]].

ARGUMENTS
I Shall be of the type INTEGER.

RETURN VALUE
Returns a LOGICAL of the default kind, which .true. if I has the value which indicates an end of file condition for IOSTAT= specifiers, and is .false. otherwise.

EXAMPLE
Sample program: 

    program demo_iostat
      implicit none
      integer :: stat, i
      open(88, file=’test.dat’)
      read(88, *, iostat=stat) i
      if(is_iostat_end(stat)) stop ’end of file’
    end program demo_iostat

STANDARD
[[Fortran 2003]] and later

CLASS
[[Elemental function]]

is_iostat_end (3) March 11, 2021
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