Is write array an atom in C #?

Question

var a = new bool[]{true,false};
var b = new bool[4];
a=b;       //operation 1
a[1]=true; //operation 2

I know that there are some atmoic types defined in C # where I cannot find an array from.

• Opration 1 is a bit of a pointer reassignment. Does it guarantee to be atmoid?
• How about operation 2?

Answer 1

Operation 1 is atomic. Operation 2 no. From the specification :

5.5 Atomicity of variable references

: bool, char, byte, sbyte, short, ushort, uint, int, float reference. , . , long, ulong, double decimal, , .

. a b , 1 : .. . 2 bool, , . , ( a[1]), .

Answer 2

, , a[1]=true; , =true , (a[1]=true;) 1 , true