C# test - no googling

[DimPrawn]

Why does the following not compile?

short x = 2, y = 3;
short z = x + y; // Compile-time error

[amcdonald]

Does it try and assign x and y both as integers, without casting them to a short thus throwing an exception ?

[AtW]

No class/function definitions...

[BrilloPad]

Can I ask Bob?

[DimPrawn]

Does it try and assign x and y both as integers, without casting them to a short thus throwing an exception ?

Why does it try and assign them as integers?

[bless 'em all]

Can I ask Bob?

He's asking ATW.

[eek]

y ends up an integer not a short.

Then the implicit conversion fails as you can't implicitly convert to a short.

[aussielong]

Why does the following not compile?

short x = 2, y = 3;
short z = x + y; // Compile-time error

Maybe the compiler infers the type of "x + y" to be an int since it could overflow a short. Then youd have to cast that explicitly to a short to assign to "z".

[amcdonald]

Why does it try and assign them as integers?

Can't remember why, when the shorts were declared I assume it implicitly converts them from integers to shorts, but when you try and add the x and y it tries to pass a reference to x and y as integers ?

[DimPrawn]

You are close.

Yes the compiler assigns the number as integers, because there is no + operator on a short! Then of course the implicit conversion of an int to a short fails at compile time.