Introduction.         (line 13)
* calling convention:                    Introduction.         (line 13)
* cif:                                   The Basics.           (line 14)
* closure API:                           The Closure API.      (line 13)
* closures:                              The Closure API.      (line 13)
* FFI:                                   Introduction.         (line 31)
* ffi_call:                              The Basics.           (line 67)
* FFI_CLOSURES:                          The Closure API.      (line 13)
* ffi_closure_alloc:                     The Closure API.      (line 19)
* ffi_closure_free:                      The Closure API.      (line 26)
* ffi_get_struct_offsets:                Size and Alignment.   (line 39)
* ffi_prep_cif:                          The Basics.           (line 16)
* ffi_prep_cif_var:                      The Basics.           (line 39)
* ffi_prep_closure_loc:                  The Closure API.      (line 34)
* ffi_status:                            The Basics.           (line 16)
* ffi_status <1>:                        The Basics.           (line 39)
* ffi_status <2>:                        Size and Alignment.   (line 39)
* ffi_status <3>:                        The Closure API.      (line 34)
* ffi_type:                              Structures.           (line 10)
* ffi_type <1>:                          Structures.           (line 10)
* ffi_type <2>:                          Complex.              (line 15)
* ffi_type <3>:                          Complex.              (line 15)
* ffi_type_complex_double:               Primitive Types.      (line 82)
* ffi_type_complex_float:                Primitive Types.      (line 79)
* ffi_type_complex_longdouble:           Primitive Types.      (line 85)
* ffi_type_double:                       Primitive Types.      (line 41)
* ffi_type_float:                        Primitive Types.      (line 38)
* ffi_type_longdouble:                   Primitive Types.      (line 71)
* ffi_type_pointer:                      Primitive Types.      (line 75)
* ffi_type_schar:                        Primitive Types.      (line 47)
* ffi_type_sint:                         Primitive Types.      (line 62)
* ffi_type_sint16:                       Primitive Types.      (line 23)
* ffi_type_sint32:                       Primitive Types.      (line 29)
* ffi_type_sint64:                       Primitive Types.      (line 35)
* ffi_type_sint8:                        Primitive Types.      (line 17)
* ffi_type_slong:                        Primitive Types.      (line 68)
* ffi_type_sshort:                       Primitive Types.      (line 56)
* ffi_type_uchar:                        Primitive Types.      (line 44)
* ffi_type_uint:                         Primitive Types.      (line 59)
* ffi_type_uint16:                       Primitive Types.      (line 20)
* ffi_type_uint32:                       Primitive Types.      (line 26)
* ffi_type_uint64:                       Primitive Types.      (line 32)
* ffi_type_uint8:                        Primitive Types.      (line 14)
* ffi_type_ulong:                        Primitive Types.      (line 65)
* ffi_type_ushort:                       Primitive Types.      (line 53)
* ffi_type_void:                         Primitive Types.      (line 10)
* Foreign Function Interface:            Introduction.         (line 31)
* void:                                  The Basics.           (line 67)
* void <1>:                              The Closure API.      (line 19)
* void <2>:                              The Closure API.      (line 26)