static void Main(string[] args)
{
Console.WriteLine("Hello World!");
S1 s1 = default;
S2 s2 = default(S2);
Console.WriteLine(s1.ToString());
Console.WriteLine(s2.ToString());
// initializer list works for struct and class
var dataStruct = new DataStruct()
{
x = 1, y = 2, z = 3
};
var dataClass = new DataClass()
{
x = 1, y = 2, z = 3
};
Console.WriteLine(dataStruct.ToString());
Console.WriteLine(dataClass.ToString());
// initializer runs last
//var x = new X<int> { };
//var x = new X<int>() {};
//var x = new X<int>() {x = 3}; // overrides constructor
var x = new X <int>(10)
{
x = 3
}; // overrides constructor
Console.WriteLine(x.ToString());
Console.WriteLine(x.x.ToString());
// var c0 = new C; // () {} [] expected
var c1 = new C();
var c3 = new C()
{
};
var c4 = new C {
};
bool found = true;
if (found)
{
int j = 1 switch { _ => 0 };
Console.WriteLine($"found {1 + 1}");
}
// tuple
var vals0 = (1, 2, 3, 4);
int _ = vals0 switch {
(1, 1, 1, 1) => 1,
(2, 2, 2, 2) => 2,
(3, 3, 3, 3) => 3,
(4, 4, 4, 4) => 4,
(5, 5, _, _) => 5,
(var a, var b, var c, var d)when a + b == c + d => a + b + c + d,
_ => 0,
};
Console.WriteLine($"{_}");
// don't know if possible
var vals1 = new int[] { 1, 2, 3, 4 };
// anonymous object
var vals2 = new { x = 1, y = 2, z = 3 };
_ = vals2 switch {
{ x : 1, y : 2 } => 1,