pointerとは

意味・読み方・使い方

語源

point +‎ -er

発音

• IPA^(key): /ˈpɔɪntə/
• ハイフネーション: point‧er
• 韻: -ɔɪntə(ɹ)

名詞

pointer (複数形 pointers)

1. Anything that points or is used for pointing.
2. A teacher's pointer, pointing stick, a rod with an arrow.

   Synonym: fescue

   Hyponym: yad

3. A needle-like component of a timepiece or measuring device that indicates the time or the current reading of the device.

   Synonyms: hand, needle

5. (hunting) A breed of hunting dog, trained to point out game.
   • 2007, American Kennel Club, The Complete Dog Book, Ballantine Books (→ISBN), page 30:

     Most of the early wirehaired pointers represented a combination of Griffon, Stichelhaar, Pudelpointer, and German Shorthair. The Pudelpointer was a cross between a Poodle dog and an English Pointer bitch; the Griffon and the Stichelhaar were composed of Pointer, Foxhound, Pudelpointer, and a Polish water dog.

6. (programming) A variable that holds the address of a memory location where a value can be stored.

   Synonym: reference

   Hyponyms: dangling pointer, function pointer, null pointer

   • 1974, Donald Knuth, “Structured Programming with go to Statements”, in Computing Surveys‎^[1], volume 6, number 5, DOI:10.1145/356635.356640, archived from the original on August 24, 2009, pages 261–301:

     I do consider assignment statements and pointer variables to be among computer science's "most valuable treasures."

7. (graphical user interface) An icon that indicates the position of the pointing device, such as a mouse.

   Synonym: cursor

   • 1995, Aaron Marcus, Nick Smilonich, Lynne Thompson, The Cross-GUI Handbook, Addison-Wesley →ISBN, page 231:

     The system notifies the user of the progress of a task by changing the appearance of the pointer. System-busy pointers usually adopt a timepiece metaphor.

8. (chiefly in the plural) A tip, a bit of advice.

   Synonym: advice

   The instructor gave me some pointers on writing a good paper.

9. (in combinations) Something worth a given number of points.

   a ten-pointer

   • 2011 September 18, Ben Dirs, “Rugby World Cup 2011: England 41-10 Georgia”, in BBC Sport‎^[2]:

     After another penalty miss, Kvirikashvili finally found the target on 27 minutes before Flood hit back with a three-pointer of his own.

参考

• (programming) dereference, address

Further reading

• pointer (dog) on Wikipedia.
• pointer (computer programming) on Wikipedia.
• pointer (user interface) on Wikipedia.
• pointer (disambiguation) on Wikipedia.

アナグラム

• Petrino, Petroni, interop, protein, pterion, repoint, tropein, tropine