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Module `core.attribute`

This module contains UDA's (User Defined Attributes) either used in the runtime or special UDA's recognized by compiler.

Cheat Sheet
Attribute Name	Linkage	Description
`gnuAbiTag`	C++	Declares an ABI tag on a C++ symbol.
`mustuse`		Ensures that values of a struct or union type are not discarded.
`optional`	Objective-C	Makes an Objective-C interface method optional.
`selector`	Objective-C	Attaches an Objective-C selector to a method.
`weak`		Specifies that a global symbol should be emitted with weak linkage.

Structs

Name	Description
`gnuAbiTag`	Use this attribute to declare an ABI tag on a C++ symbol.
`selector`	Use this attribute to attach an Objective-C selector to a method.

Enums

Name	Description
`mustuse`	Use this attribute to ensure that values of a `struct` or `union` type are not discarded.
`optional`	Use this attribute to make an Objective-C interface method optional.
`standalone`	Use this attribute to indicate that a shared module constructor does not depend on any other module constructor being run first. This avoids errors on cyclic module constructors.
`weak`	Use this attribute to specify that a global symbol should be emitted with weak linkage. This is primarily useful in defining library functions that can be overridden by user code, though it can also be used with shared and static variables too.

Authors

Jacob Carlborg

License

Boost License 1.0