Fortran Wiki
c_f_procpointer

Description

c_f_procpointer(cptr, fptr) assigns the target of the C function pointer cptr to the Fortran procedure pointer fptr.

Standard

Fortran 2003 and later

Class

Subroutine

Syntax

call c_f_procpointer(cptr, fptr)

Arguments

• cptr - scalar of the type c_funptr. It is intent(in).
• fptr - procedure pointer interoperable with cptr. It is intent(out).

Example

program main
  use iso_c_binding
  implicit none
  abstract interface
    function func(a)
      import :: c_float
      real(c_float), intent(in) :: a
      real(c_float) :: func
    end function
  end interface
  interface
     function getIterFunc() bind(c,name="getIterFunc")
       import :: c_funptr
       type(c_funptr) :: getIterFunc
     end function
  end interface
  type(c_funptr) :: cfunptr
  procedure(func), pointer :: myFunc
  cfunptr = getIterFunc()
  call c_f_procpointer(cfunptr, myFunc)
end program main

See also

c_loc, c_f_pointer, iso_c_binding