Extrinsic Language Bindings

H1101 type-declaration-stmt-extended	is type-spec [ [ , attr-spec-extended ] ... :: ] entity-decl-list
H1102 attr-spec-extended	is PARAMETER or access-spec or ALLOCATABLE or DIMENSION ( array-spec ) or EXTERNAL or INTENT ( intent-spec ) or INTRINSIC or OPTIONAL or POINTER or SAVE or TARGET or MAP_TO ( map-to-spec ) or LAYOUT ( layout-spec ) or PASS_BY ( pass-by-spec )
H1103 map-to-spec	is scalar-char-initialization-expr
H1104 layout-spec	is scalar-char-initialization-expr
H1105 pass-by-spec	is scalar-char-initialization-expr

• The same attr-spec-extended shall not appear more than once in a given type-declaration-stmt.
• An entity shall not be explicitly given any attribute more than once in a scoping unit.
• The attributes MAP_TO, LAYOUT, and PASS_BY may be specified only for dummy arguments within a scoping unit of an extrinsic type for which these attributes have been explicitly defined.