処しょ理り系けい定てい義ぎの動どう作さ

noun

implementation-defined behavior

Computing term for behavior that depends on the specific implementation (compiler, interpreter, etc.) and must be documented by the implementer.

• C言げん語ごでは、文も字じ型がたの符ふ号ごうの有う無むは処しょ理り系けい定てい義ぎの動どう作さです。

  In C, whether character types are signed is implementation-defined behavior.

• 処しょ理り系けい定てい義ぎの動どう作さに依い存ぞんしたコードは移い植しょく性せいが低ひくい。

  Code that relies on implementation-defined behavior has low portability.