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Brug af flags i funktioner



Hejsa.

Jeg vil gerne lave en funktion med forskellige flags i.
Noget i retning af

enum flags{
	FLAG_1 = 1 << 1,
	FLAG_2 = 1 << 2,
	FLAG_3 = 1 << 3
};

void f(flags f){
	...
}

Man skal så kunne kalde funktionen med f(FLAG_1 | FLAG_2);

Men hvordan er det så lige at jeg herefter finder ud af hvilke flags der er sat.
Jeg læste det engang et eller andet sted, men har glemt hvor.


Håber nogen kan hjælpe
Mvh. Mads Sejersen



 
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