実じっ装そう者しゃ定てい義ぎ

noun

implementation-defined

Computing term used in specifications to indicate that a behavior is left to the implementer's discretion, not fixed by the standard.

• 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実じっ装そう者しゃ定てい義ぎである。

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