internal static void Structs()
{
// Simple examples
var myPoint = new PointExtended {
X = 1, Y = 1, Z = 1
};
Console.WriteLine($"PointExtended Before: X {myPoint.X}, Y {myPoint.Y}, Z {myPoint.Z}");
// Classic pass the struct by blue --> copy value type and slow and memory expensive!
UpdateValuesWithoutIn(myPoint);
// ref/out/in avoid copying the value type!
// In pass the struct by reference --> no-value-copy fast!
UpdateValues(myPoint);
Console.WriteLine($"PointExtended After: X {myPoint.X}, Y {myPoint.Y}, Z {myPoint.Z}");
var pointExtendedReadonly = new PointExtendedReadonly(1, 1, 1);
Console.WriteLine($"PointExtendedReadonly ReadOnly: X {pointExtendedReadonly.X}, Y {pointExtendedReadonly.Y}, Z {pointExtendedReadonly.Z}");
// The values cannot be changed!
UpdateValuesReadOnly(pointExtendedReadonly);
var pointExtendedReadonlyRef = new PointExtendedReadonlyRef(1, 1, 1);
Console.WriteLine($"ReadOnlyRef: X {pointExtendedReadonlyRef.X}, Y {pointExtendedReadonlyRef.Y}, Z {pointExtendedReadonlyRef.Z}");
PointExtended firstPoint = new PointExtended(1, 1, 1);
PointExtended otherPoint = firstPoint;
otherPoint.X = 2;
// The firstPoint.X still 1 the value type is always copied!
Console.WriteLine(firstPoint.X);
// I have replaced the firstPoint with the otherPoint!
var thirdPoint = firstPoint.Replace(otherPoint);
Console.WriteLine(firstPoint.X);
var areEquals = firstPoint.Equals(otherPoint);
areEquals = areEquals && firstPoint.Equals(thirdPoint); // true.
Console.WriteLine(areEquals);
// Bug by overload is fixed!
var buBugInOverlodaResolutiongIn = new BugInOverlodaResolution();
var x = 5;
buBugInOverlodaResolutiongIn.M(in x);
//bugIn.M(y); // Working with version VS 15.6 preview 2 or a later version!
Console.ReadLine();
}
public PointExtended Replace(PointExtended other)
{
this = other;
return(other);
}
public PointExtended(PointExtended other)
{
this = other;
}
static void UpdateValuesWithoutIn(PointExtended myPoint)
{
myPoint.X++;
myPoint.Y++;
myPoint.Z++;
}