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//<Title>Nullable types have a default single-parameter constructor</Title>
//<Description>
// A nullable type can be created with a single argument constructor
// The HasValue property will be set to true, and the Value property will get the value of the constructor
//</Description>
#pragma warning disable 0649
using System;
interface BaseInter { }
interface GenInter<T> { }
struct Struct { }
struct ImplStruct : BaseInter { }
struct OpenGenImplStruct<T> : GenInter<T> { }
struct CloseGenImplStruct : GenInter<int> { }
class Foo { }
class NullableTest1
{
static int? i = new int?(1);
static Struct? s = new Struct?(new Struct());
static ImplStruct? imps = new ImplStruct?(new ImplStruct());
static OpenGenImplStruct<Foo>? genfoo = new OpenGenImplStruct<Foo>?(new OpenGenImplStruct<Foo>());
static CloseGenImplStruct? genint = new CloseGenImplStruct?(new CloseGenImplStruct());
public static void Run()
{
Test.Eval(i.HasValue);
Test.Eval(i.Value, 1);
Test.Eval(s.HasValue);
Test.Eval(s.Value, default(Struct));
Test.Eval(imps.HasValue);
Test.Eval(imps.Value, default(ImplStruct));
Test.Eval(genfoo.HasValue);
Test.Eval(genfoo.Value, default(OpenGenImplStruct<Foo>));
Test.Eval(genint.HasValue);
Test.Eval(genint.Value, default(CloseGenImplStruct));
}
}
class NullableTests
{
public static void Run()
{
NullableTest1.Run();
}
}
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