static IEnumerable<long> TestQuantityTypes(int N)
{
Console.WriteLine("=== QuantityTypes ===");
var length = Marshal.SizeOf(typeof(Length));
Console.WriteLine("Length = {0} bytes", length);
yield return length;
var a1 = new Length[N];
var a2 = new Area[N];
using (var timer = new Timer("Assign"))
{
for (int i = 0; i < N; i++) a1[i] = Length.Metre;
}
using (var timer = new Timer("Assign (multiplication)"))
{
for (int i = 0; i < N; i++) a1[i] = i * Length.Metre;
yield return timer.Stop();
}
using (var timer = new Timer("Assign (ctor)"))
{
for (int i = 0; i < N; i++) a1[i] = new Length(i);
yield return timer.Stop();
}
using (var timer = new Timer("Add (operator)"))
{
for (int i = 0; i < N; i++) a1[i] = a1[i] + a1[0];
yield return timer.Stop();
}
#if PublicFields
using (var timer=new Timer("Add (field)"))
{
for (int i = 0; i < N; i++) a1[i] = new Length(a1[i].value + a1[0].value);
}
#endif
using (var timer = new Timer("Add (property)"))
{
for (int i = 0; i < N; i++) a1[i] = new Length(a1[i].Value + a1[0].Value);
yield return timer.Stop();
}
var s = "10";
using (var timer = new Timer("Parse"))
{
for (int i = 0; i < N; i++) a1[i] = Length.Parse(s);
yield return timer.Stop();
}
s = "10 m";
using (var timer = new Timer("Parse with unit"))
{
for (int i = 0; i < N; i++) a1[i] = Length.Parse(s);
yield return timer.Stop();
}
using (var timer = new Timer("Multiply"))
{
for (int i = 0; i < N; i++) a2[i] = a1[i] * a1[i];
yield return timer.Stop();
}
#if PublicFields
using (var timer=new Timer("Multiply (field)"))
{
for (int i = 0; i < N; i++) a2[i] = new Area(a1[i].value * a1[i].value);
yield return timer.Stop();
}
#endif
using (var timer = new Timer("Multiply (property, ctor)"))
{
for (int i = 0; i < N; i++) a2[i] = new Area(a1[i].Value * a1[i].Value);
yield return timer.Stop();
}
using (var timer = new Timer("Multiply (property, multiplication)"))
{
for (int i = 0; i < N; i++) a2[i] = (a1[i].Value * a1[i].Value) * Area.SquareMetre;
}
using (var timer = new Timer("Square"))
{
for (int i = 0; i < N; i++) a2[i] = a1[i].Squared();
}
using (var timer = new Timer("^"))
{
for (int i = 0; i < N; i++) a2[i] = (Area)(a1[i] ^ 2);
}
double sum1;
using (var timer = new Timer("Sum (operator)"))
{
var sum = new Area();
for (int i = 0; i < N; i++) sum += a2[i];
sum1 = sum.ConvertTo(Area.SquareMetre);
yield return timer.Stop();
}
#if PublicFields
double sum2 = 0;
using (var timer=new Timer("Sum (field)"))
{
for (int i = 0; i < N; i++) sum2 += a2[i].value;
}
#endif
double sum3 = 0;
using (var timer = new Timer("Sum (property)"))
{
for (int i = 0; i < N; i++) sum3 += a2[i].Value;
yield return timer.Stop();
}
Console.WriteLine();
}
public void XmlValue_RoundTrip_ValuesShouldBeEqual()
{
var l1 = 4.0 / 7 * Length.Metre;
var l2 = new Length { XmlValue = l1.XmlValue };
Assert.AreEqual(l1, l2);
}
/// <summary>
/// Returns the angle whose tangent is the quotient of the two specified numbers.
/// </summary>
/// <param name="y">The y coordinate of a point.</param>
/// <param name="x">The x coordinate of a point.</param>
/// <returns>An angle, θ, measured in radians, such that -π ≤ θ ≤ π, and tan(θ) = y / x, where (x, y) is a point in the Cartesian plane.</returns>
public static Angle Atan2(Length y, Length x)
{
return new Angle(Math.Atan2(y.Value, x.Value));
}