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・ Taganka Theatre
・ Taganode Local Search Engine
・ Taganrog
・ Taganrog Bay
・ Taganrog City Architectural Development Museum
・ Tag (advertisement)
・ Tag (barbershop music)
・ TAG (BBS)
・ Tag (comics)
・ Tag (film)
・ Tag (game)
・ Tag (Hebrew writing)
・ Tag (horse)
・ Tag (LeapFrog)
・ Tag (metadata)
Tag (programming)
・ Tag 26
・ TAG 7
・ Tag 91.1
・ Tag Ab Khanak
・ Tag Adams
・ TAG Airlines
・ Tag and Bink
・ Tag and release
・ TAG Body Spray
・ Tag Challenge
・ Tag cloud
・ TAG Convoys
・ TAG Corner
・ Tag editor


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Tag (programming) : ウィキペディア英語版
Tag (programming)

In programming, a tag is an argument to a subroutine that determines other arguments passed to it, which is used as a way to pass indefinite number of tagged parameters to the subroutine; notably, tags are used for a number of system calls in AmigaOS v2.0 and onwards.
==In AmigaOS==
In earlier versions of AmigaOS, if a system call required setting a large number of parameters, instead of passing them as function arguments, the function would require a pointer to a structure that holds the arguments (for example, intuition.library's OpenWindow() required struct NewWindow with 17 different parameters). Tags were introduced in AmigaOS 2.0 because they "make it possible to add new parameters to system functions without interfering with the original parameters. They also make specifying parameter lists much clearer and easier."
A number of third-party software libraries for AmigaOS also use tags extensively.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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