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I/O object service requirements

An I/O object service must meet the requirements for a service, as well as the requirements listed below.

In the table below, X denotes an I/O object service class, a denotes a value of type X, b denotes a value of type X::implementation_type, and u denotes an identifier.

Table 17. IoObjectService requirements

expression

return type

assertion/note
pre/post-condition

X::implementation_type

X::implementation_type u;

note: X::implementation_type has a public default constructor and destructor.

a.construct(b);

a.destroy(b);

note: destroy() will only be called on a value that has previously been initialised with construct().



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