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This commit is the result of running the gdb/copyright.py script, which automated the update of the copyright year range for all source files managed by the GDB project to be updated to include year 2023.
244 lines
7.0 KiB
Fortran
244 lines
7.0 KiB
Fortran
! Copyright 2019-2023 Free Software Foundation, Inc.
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!
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! This program is free software; you can redistribute it and/or modify
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! it under the terms of the GNU General Public License as published by
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! the Free Software Foundation; either version 3 of the License, or
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! (at your option) any later version.
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!
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! This program is distributed in the hope that it will be useful,
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! but WITHOUT ANY WARRANTY; without even the implied warranty of
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! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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! GNU General Public License for more details.
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!
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! You should have received a copy of the GNU General Public License
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! along with this program. If not, see <http://www.gnu.org/licenses/> .
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! Source code for function-calls.exp.
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subroutine no_arg_subroutine()
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end subroutine
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logical function no_arg()
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no_arg = .TRUE.
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end function
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subroutine run(a)
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external :: a
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call a()
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end subroutine
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logical function one_arg(x)
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logical, intent(in) :: x
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one_arg = x
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end function
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integer(kind=4) function one_arg_value(x)
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integer(kind=4), value :: x
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one_arg_value = x
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end function
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integer(kind=4) function several_arguments(a, b, c)
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integer(kind=4), intent(in) :: a
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integer(kind=4), intent(in) :: b
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integer(kind=4), intent(in) :: c
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several_arguments = a + b + c
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end function
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integer(kind=4) function mix_of_scalar_arguments(a, b, c)
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integer(kind=4), intent(in) :: a
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logical(kind=4), intent(in) :: b
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real(kind=8), intent(in) :: c
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mix_of_scalar_arguments = a + floor(c)
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if (b) then
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mix_of_scalar_arguments=mix_of_scalar_arguments+1
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end if
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end function
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real(kind=4) function real4_argument(a)
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real(kind=4), intent(in) :: a
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real4_argument = a
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end function
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integer(kind=4) function return_constant()
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return_constant = 17
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end function
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character(40) function return_string()
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return_string='returned in hidden first argument'
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end function
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recursive function fibonacci(n) result(item)
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integer(kind=4) :: item
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integer(kind=4), intent(in) :: n
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select case (n)
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case (0:1)
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item = n
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case default
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item = fibonacci(n-1) + fibonacci(n-2)
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end select
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end function
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complex function complex_argument(a)
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complex, intent(in) :: a
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complex_argument = a
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end function
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integer(kind=4) function array_function(a)
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integer(kind=4), dimension(11) :: a
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array_function = a(ubound(a, 1, 4))
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end function
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integer(kind=4) function pointer_function(int_pointer)
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integer, pointer :: int_pointer
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pointer_function = int_pointer
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end function
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integer(kind=4) function hidden_string_length(string)
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character*(*) :: string
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hidden_string_length = len(string)
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end function
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integer(kind=4) function sum_some(a, b, c)
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integer :: a, b
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integer, optional :: c
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sum_some = a + b
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if (present(c)) then
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sum_some = sum_some + c
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end if
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end function
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module derived_types_and_module_calls
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type cart
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integer :: x
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integer :: y
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end type
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type cart_nd
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integer :: x
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integer, allocatable :: d(:)
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end type
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type nested_cart_3d
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type(cart) :: d
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integer :: z
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end type
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contains
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type(cart) function pass_cart(c)
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type(cart) :: c
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pass_cart = c
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end function
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integer(kind=4) function pass_cart_nd(c)
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type(cart_nd) :: c
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pass_cart_nd = ubound(c%d,1,4)
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end function
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type(nested_cart_3d) function pass_nested_cart(c)
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type(nested_cart_3d) :: c
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pass_nested_cart = c
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end function
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type(cart) function build_cart(x,y)
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integer :: x, y
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build_cart%x = x
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build_cart%y = y
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end function
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end module
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program function_calls
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use derived_types_and_module_calls
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implicit none
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interface
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logical function no_arg()
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end function
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logical function one_arg(x)
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logical, intent(in) :: x
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end function
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integer(kind=4) function pointer_function(int_pointer)
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integer, pointer :: int_pointer
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end function
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integer(kind=4) function several_arguments(a, b, c)
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integer(kind=4), intent(in) :: a
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integer(kind=4), intent(in) :: b
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integer(kind=4), intent(in) :: c
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end function
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complex function complex_argument(a)
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complex, intent(in) :: a
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end function
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real(kind=4) function real4_argument(a)
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real(kind=4), intent(in) :: a
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end function
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integer(kind=4) function return_constant()
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end function
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character(40) function return_string()
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end function
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integer(kind=4) function one_arg_value(x)
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integer(kind=4), value :: x
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end function
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integer(kind=4) function sum_some(a, b, c)
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integer :: a, b
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integer, optional :: c
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end function
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integer(kind=4) function mix_of_scalar_arguments(a, b, c)
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integer(kind=4), intent(in) :: a
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logical(kind=4), intent(in) :: b
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real(kind=8), intent(in) :: c
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end function
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integer(kind=4) function array_function(a)
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integer(kind=4), dimension(11) :: a
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end function
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integer(kind=4) function hidden_string_length(string)
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character*(*) :: string
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end function
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end interface
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logical :: untrue, no_arg_return
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complex :: fft, fft_result
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integer(kind=4), dimension (11) :: integer_array
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real(kind=8) :: real8
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real(kind=4) :: real4
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integer, pointer :: int_pointer
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integer, target :: pointee, several_arguments_return
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integer(kind=4) :: integer_return
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type(cart) :: c, cout
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type(cart_nd) :: c_nd
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type(nested_cart_3d) :: nested_c
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character(40) :: returned_string, returned_string_debugger
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external no_arg_subroutine
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real8 = 3.00
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real4 = 9.3
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integer_array = 17
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fft = cmplx(2.1, 3.3)
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print *, fft
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untrue = .FALSE.
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int_pointer => pointee
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pointee = 87
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c%x = 2
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c%y = 4
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c_nd%x = 4
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allocate(c_nd%d(4))
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c_nd%d = 6
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nested_c%z = 3
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nested_c%d%x = 1
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nested_c%d%y = 2
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! Use everything so it is not elided by the compiler.
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call no_arg_subroutine()
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no_arg_return = no_arg() .AND. one_arg(.FALSE.)
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several_arguments_return = several_arguments(1,2,3) + return_constant()
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integer_return = array_function(integer_array)
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integer_return = mix_of_scalar_arguments(2, untrue, real8)
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real4 = real4_argument(3.4)
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integer_return = pointer_function(int_pointer)
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c = pass_cart(c)
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integer_return = pass_cart_nd(c_nd)
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nested_c = pass_nested_cart(nested_c)
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integer_return = hidden_string_length('string of implicit length')
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call run(no_arg_subroutine)
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integer_return = one_arg_value(10)
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integer_return = sum_some(1,2,3)
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returned_string = return_string()
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cout = build_cart(4,5)
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fft_result = complex_argument(fft)
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print *, cout
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print *, several_arguments_return
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print *, fft_result
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print *, real4
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print *, integer_return
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print *, returned_string_debugger
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deallocate(c_nd%d) ! post_init
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end program
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