mirror of
https://github.com/corda/corda.git
synced 2024-12-29 09:18:58 +00:00
9bb3d6b972
git-subtree-dir: sgx-jvm/avian git-subtree-mainline:f978eab8d1git-subtree-split:09e4fe60d0
352 lines
8.4 KiB
Java
352 lines
8.4 KiB
Java
public class Floats {
|
|
private static void expect(boolean v) {
|
|
if (! v) throw new RuntimeException();
|
|
}
|
|
|
|
private static double multiply(double a, double b) {
|
|
return a * b;
|
|
}
|
|
|
|
private static float multiply(float a, float b) {
|
|
return a * b;
|
|
}
|
|
|
|
private static double divide(double a, double b) {
|
|
return a / b;
|
|
}
|
|
|
|
private static double subtract(double a, double b) {
|
|
return a - b;
|
|
}
|
|
|
|
private double field = 100d;
|
|
|
|
private static int doubleToInt(Floats f) {
|
|
return (int) f.field;
|
|
}
|
|
|
|
private static void multiplyAndStore(double a, double b, Floats f) {
|
|
f.field = a * b;
|
|
}
|
|
|
|
private static double loadAndMultiply(double a, Floats f) {
|
|
return f.field * a;
|
|
}
|
|
|
|
private static void subdivide(double src[], int srcoff,
|
|
double left[], int leftoff,
|
|
double right[], int rightoff)
|
|
{
|
|
double x1 = src[srcoff + 0];
|
|
double y1 = src[srcoff + 1];
|
|
double ctrlx1 = src[srcoff + 2];
|
|
double ctrly1 = src[srcoff + 3];
|
|
double ctrlx2 = src[srcoff + 4];
|
|
double ctrly2 = src[srcoff + 5];
|
|
double x2 = src[srcoff + 6];
|
|
double y2 = src[srcoff + 7];
|
|
if (left != null) {
|
|
left[leftoff + 0] = x1;
|
|
left[leftoff + 1] = y1;
|
|
}
|
|
if (right != null) {
|
|
right[rightoff + 6] = x2;
|
|
right[rightoff + 7] = y2;
|
|
}
|
|
x1 = (x1 + ctrlx1) / 2.0;
|
|
y1 = (y1 + ctrly1) / 2.0;
|
|
x2 = (x2 + ctrlx2) / 2.0;
|
|
y2 = (y2 + ctrly2) / 2.0;
|
|
double centerx = (ctrlx1 + ctrlx2) / 2.0;
|
|
double centery = (ctrly1 + ctrly2) / 2.0;
|
|
ctrlx1 = (x1 + centerx) / 2.0;
|
|
ctrly1 = (y1 + centery) / 2.0;
|
|
ctrlx2 = (x2 + centerx) / 2.0;
|
|
ctrly2 = (y2 + centery) / 2.0;
|
|
centerx = (ctrlx1 + ctrlx2) / 2.0;
|
|
centery = (ctrly1 + ctrly2) / 2.0;
|
|
if (left != null) {
|
|
left[leftoff + 2] = x1;
|
|
left[leftoff + 3] = y1;
|
|
left[leftoff + 4] = ctrlx1;
|
|
left[leftoff + 5] = ctrly1;
|
|
left[leftoff + 6] = centerx;
|
|
left[leftoff + 7] = centery;
|
|
}
|
|
if (right != null) {
|
|
right[rightoff + 0] = centerx;
|
|
right[rightoff + 1] = centery;
|
|
right[rightoff + 2] = ctrlx2;
|
|
right[rightoff + 3] = ctrly2;
|
|
right[rightoff + 4] = x2;
|
|
right[rightoff + 5] = y2;
|
|
}
|
|
}
|
|
|
|
public static class Rectangle {
|
|
public double x;
|
|
public double y;
|
|
public double width;
|
|
public double height;
|
|
|
|
public void setX(double x) {
|
|
this.x = x;
|
|
}
|
|
}
|
|
|
|
public static void main(String[] args) throws Exception {
|
|
expect(new Double(42.0) == 42.0);
|
|
|
|
{ Rectangle r = new Rectangle();
|
|
Rectangle.class.getMethod("setX", double.class).invoke(r, 42.0);
|
|
expect(r.x == 42.0);
|
|
}
|
|
|
|
{ double input[] = new double[8];
|
|
double left[] = new double[8];
|
|
double right[] = new double[8];
|
|
|
|
input[0] = 732.0;
|
|
input[1] = 952.0;
|
|
input[2] = 761.0;
|
|
input[3] = 942.0;
|
|
input[4] = 786.0;
|
|
input[5] = 944.0;
|
|
input[6] = 813.0;
|
|
input[7] = 939.0;
|
|
|
|
subdivide(input, 0, left, 0, right, 0);
|
|
|
|
expect(left[0] == 732.0);
|
|
expect(left[1] == 952.0);
|
|
expect(left[2] == 746.5);
|
|
expect(left[3] == 947.0);
|
|
expect(left[4] == 760.0);
|
|
expect(left[5] == 945.0);
|
|
expect(left[6] == 773.25);
|
|
expect(left[7] == 943.625);
|
|
|
|
expect(right[0] == 773.25);
|
|
expect(right[1] == 943.625);
|
|
expect(right[2] == 786.5);
|
|
expect(right[3] == 942.25);
|
|
expect(right[4] == 799.5);
|
|
expect(right[5] == 941.5);
|
|
expect(right[6] == 813.0);
|
|
expect(right[7] == 939.0);
|
|
}
|
|
|
|
expect(multiply(0.5d, 0.5d) == 0.25d);
|
|
expect(multiply(0.5f, 0.5f) == 0.25f);
|
|
|
|
expect(multiply(0.5d, 0.1d) == 0.05d);
|
|
expect(multiply(0.5f, 0.1f) == 0.05f);
|
|
|
|
expect(multiply(0.5d, 0.5d) < 0.5d);
|
|
expect(multiply(0.5f, 0.5f) < 0.5f);
|
|
|
|
expect(multiply(0.5d, 0.1d) < 0.5d);
|
|
expect(multiply(0.5f, 0.1f) < 0.5f);
|
|
|
|
expect(multiply(0.5d, 0.5d) > 0.1d);
|
|
expect(multiply(0.5f, 0.5f) > 0.1f);
|
|
|
|
expect(multiply(0.5d, 0.1d) > 0.01d);
|
|
expect(multiply(0.5f, 0.1f) > 0.01f);
|
|
|
|
expect(divide(0.5d, 0.5d) == 1.0d);
|
|
|
|
expect(divide(0.5d, 0.1d) == 5.0d);
|
|
|
|
expect(subtract(0.5d, 0.5d) == 0.0d);
|
|
|
|
expect(subtract(0.5d, 0.1d) == 0.4d);
|
|
|
|
{ double d = 1d;
|
|
expect(((int) d) == 1);
|
|
}
|
|
|
|
{ double d = 12345d;
|
|
expect(((int) d) == 12345);
|
|
}
|
|
|
|
expect(doubleToInt(new Floats()) == 100);
|
|
|
|
{ Floats f = new Floats();
|
|
f.field = 32.0d;
|
|
expect(loadAndMultiply(2.0d, f) == 64.0d);
|
|
}
|
|
|
|
{ Floats f = new Floats();
|
|
f.field = 32.0d;
|
|
expect(multiply(2.0d, f.field) == 64.0d);
|
|
}
|
|
|
|
{ Floats f = new Floats();
|
|
multiplyAndStore(32.0d, 0.5d, f);
|
|
expect(f.field == 16.0d);
|
|
}
|
|
|
|
{ float f = 1f;
|
|
expect(((int) f) == 1);
|
|
}
|
|
|
|
{ float f = 1f;
|
|
expect(((long) f) == 1);
|
|
}
|
|
|
|
expect(Math.round(0.4f) == 0);
|
|
expect(Math.round(0.5f) == 1);
|
|
expect(Math.round(1.0f) == 1);
|
|
expect(Math.round(1.9f) == 2);
|
|
|
|
expect(Math.round(0.4d) == 0);
|
|
expect(Math.round(0.5d) == 1);
|
|
expect(Math.round(1.0d) == 1);
|
|
expect(Math.round(1.9d) == 2);
|
|
|
|
{ float b = 1.0f;
|
|
int blue = (int)(b * 255 + 0.5);
|
|
expect(blue == 255);
|
|
}
|
|
|
|
{ long z = 6553311036568663L;
|
|
double d = (double) z;
|
|
expect(d == 6553311036568663.0);
|
|
}
|
|
|
|
{ long z = 12345L;
|
|
float f = (float) z;
|
|
expect(f == 12345.0);
|
|
}
|
|
|
|
{ int z = 12345;
|
|
float f = (float) z;
|
|
expect(f == 12345.0);
|
|
}
|
|
|
|
{ int z = 12345;
|
|
double d = (double) z;
|
|
expect(d == 12345.0);
|
|
}
|
|
|
|
// Test floatToIntBits
|
|
{
|
|
int orig = 0x7f800001;
|
|
float NaN = Float.intBitsToFloat(orig);
|
|
int result = Float.floatToIntBits(NaN);
|
|
int expected = 0x7fc00000;
|
|
expect(result == expected);
|
|
}
|
|
|
|
{
|
|
int orig = 0x7f801001;
|
|
float NaN = Float.intBitsToFloat(orig);
|
|
int result = Float.floatToIntBits(NaN);
|
|
int expected = 0x7fc00000;
|
|
expect(result == expected);
|
|
}
|
|
|
|
{
|
|
int orig = 0x00800001;
|
|
float number = Float.intBitsToFloat(orig);
|
|
int result = Float.floatToIntBits(number);
|
|
expect(result == orig);
|
|
}
|
|
|
|
{
|
|
int orig = 0x80800003;
|
|
float number = Float.intBitsToFloat(orig);
|
|
int result = Float.floatToIntBits(number);
|
|
expect(result == orig);
|
|
}
|
|
|
|
for (int x = 0; x < 1000; ++x) {
|
|
int m = 100;
|
|
int n = 200;
|
|
double array[][] = new double[m][n];
|
|
|
|
for (int i = 0; i < m; ++i) {
|
|
for (int j = 0; j < n; ++j) {
|
|
array[i][j] = 1234567890.0;
|
|
}
|
|
}
|
|
}
|
|
|
|
{ double v = Double.NaN;
|
|
expect(0 == (int) v); }
|
|
|
|
{ double v = Double.NEGATIVE_INFINITY;
|
|
expect(Integer.MIN_VALUE == (int) v); }
|
|
|
|
{ double v = Long.MIN_VALUE;
|
|
expect(Integer.MIN_VALUE == (int) v); }
|
|
|
|
{ double v = Double.POSITIVE_INFINITY;
|
|
expect(Integer.MAX_VALUE == (int) v); }
|
|
|
|
{ double v = Long.MAX_VALUE;
|
|
expect(Integer.MAX_VALUE == (int) v); }
|
|
|
|
{ float v = Float.NaN;
|
|
expect(0 == (int) v); }
|
|
|
|
{ float v = Float.NEGATIVE_INFINITY;
|
|
expect(Integer.MIN_VALUE == (int) v); }
|
|
|
|
{ float v = Integer.MIN_VALUE;
|
|
expect(Integer.MIN_VALUE == (int) v); }
|
|
|
|
{ float v = Float.POSITIVE_INFINITY;
|
|
expect(Integer.MAX_VALUE == (int) v); }
|
|
|
|
{ float v = Integer.MAX_VALUE;
|
|
expect(Integer.MAX_VALUE == (int) v); }
|
|
|
|
{ double v = Double.NaN;
|
|
expect(0 == (long) v); }
|
|
|
|
{ double v = Double.NEGATIVE_INFINITY;
|
|
expect(Long.MIN_VALUE == (long) v); }
|
|
|
|
{ double v = Long.MIN_VALUE;
|
|
expect(Long.MIN_VALUE == (long) v); }
|
|
|
|
{ double v = Double.POSITIVE_INFINITY;
|
|
expect(Long.MAX_VALUE == (long) v); }
|
|
|
|
{ double v = Long.MAX_VALUE;
|
|
expect(Long.MAX_VALUE == (long) v); }
|
|
|
|
{ float v = Float.NaN;
|
|
expect(0 == (long) v); }
|
|
|
|
{ float v = Float.NEGATIVE_INFINITY;
|
|
expect(Long.MIN_VALUE == (long) v); }
|
|
|
|
{ float v = Integer.MIN_VALUE;
|
|
expect(Integer.MIN_VALUE == (long) v); }
|
|
|
|
{ float v = Float.POSITIVE_INFINITY;
|
|
expect(Long.MAX_VALUE == (long) v); }
|
|
|
|
expect(Double.NaN != Double.NaN);
|
|
expect(! (Double.NaN == Double.NaN));
|
|
|
|
{ double d = Double.NaN;
|
|
expect(Double.NaN != d);
|
|
expect(! (Double.NaN == d));
|
|
expect(d != d);
|
|
expect(! (d == d)); }
|
|
|
|
expect(Float.NaN != Float.NaN);
|
|
expect(! (Float.NaN == Float.NaN));
|
|
|
|
{ float d = Float.NaN;
|
|
expect(Float.NaN != d);
|
|
expect(! (Float.NaN == d));
|
|
expect(d != d);
|
|
expect(! (d == d)); }
|
|
}
|
|
}
|