8.42 C_FUNLOC — Obtain the C address of a procedure

Description:

C_FUNLOC(x) determines the C address of the argument.

Standard:

Fortran 2003 and later

Class:

Inquiry function

Syntax:

RESULT = C_FUNLOC(x)

Arguments:

x	Interoperable function or pointer to such function.

Return value:

The return value is of type C_FUNPTR and contains the C address of the argument.

Example:

          module x
            use iso_c_binding
            implicit none
          contains
            subroutine sub(a) bind(c)
              real(c_float) :: a
              a = sqrt(a)+5.0
            end subroutine sub
          end module x
          program main
            use iso_c_binding
            use x
            implicit none
            interface
              subroutine my_routine(p) bind(c,name='myC_func')
                import :: c_funptr
                type(c_funptr), intent(in) :: p
              end subroutine
            end interface
            call my_routine(c_funloc(sub))
          end program main

See also:

C_ASSOCIATED, C_LOC, C_F_POINTER, C_F_PROCPOINTER