Multiple applicable methods

Question

Consider two methods with same name, but different parameters:

private void Method(int number) => Debug.WriteLine("I'm method 01");

private void Method(int number, string name = "") => Debug.WriteLine("I'm method 02");

Theoretically if we call Method(0);, both methods are applicable. There are no errors/warnings.

Debugging shows that the compiler takes the method 01 - is there any rule for that?

Is there no danger that method 02 gets invoked?

There is a specific language in the spec that says what to do in this scenario. See the answer to the duplicate question for the explanation. — Sergey Kalinichenko, Nov 06 '17 at 20:19

score 2 · Accepted Answer · answered Nov 06 '17 at 20:17

2

The C# specification explains at length exactly how overload resolution works.

See here for precise details.

C# is not a random language; every possible piece of code either has a spec-defined meaning (which will never change) or will give a compiler error.

answered Nov 06 '17 at 20:17

SLaks

868,454
176
1,908
1,964

'Overload resolution' - I knew I was missing something. Thanks – Romasz Nov 06 '17 at 20:29

Multiple applicable methods

1 Answers1