Avalados por :
REPORT demo_is_not_bound.
CLASS cls DEFINITION.
PUBLIC SECTION.
CLASS-DATA dref TYPE REF TO i.
CLASS-METHODS main.
ENDCLASS.
CLASS cls IMPLEMENTATION.
METHOD main.
DATA number TYPE i.
dref = REF #( number ).
ENDMETHOD.
ENDCLASS.
START-OF-SELECTION.
cls=>main( ).
IF cls=>dref IS NOT INITIAL AND
cls=>dref IS NOT BOUND.
cl_demo_output=>display(
'la referencia de pila no es inicial pero no está vinculada' ).
ENDIF.
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