Merge pull request #447 from JohnLCaron/bigint

Add internal BigInteger copies for internal testing. 
kotlin jvm target is Java 17

egklib/build.gradle.kts

@@ -14,8 +14,9 @@ version = "2.0.3-SNAPSHOT"
 
 kotlin {
     jvm {
+        withJava()
         compilations.all {
-            kotlinOptions.jvmTarget = "1.8"
+            kotlinOptions.jvmTarget = "17"
             kotlinOptions.freeCompilerArgs = listOf(
                 "-Xexpect-actual-classes",
                 "-opt-in=kotlinx.coroutines.ExperimentalCoroutinesApi,kotlinx.serialization.ExperimentalSerializationApi"

egklib/src/jvmMain/java/org/cryptobiotic/bigint/DoubleConsts.java

@@ -0,0 +1,52 @@
+package org.cryptobiotic.bigint;
+
+public class DoubleConsts {
+    /**
+     * Don't let anyone instantiate this class.
+     */
+    private DoubleConsts() {}
+
+    /**
+     * The number of logical bits in the significand of a
+     * {@code double} number, including the implicit bit.
+     */
+    public static final int SIGNIFICAND_WIDTH   = 53;
+
+    /**
+     * The exponent the smallest positive {@code double}
+     * subnormal value would have if it could be normalized..
+     */
+    public static final int     MIN_SUB_EXPONENT = Double.MIN_EXPONENT -
+            (SIGNIFICAND_WIDTH - 1);
+
+    /**
+     * Bias used in representing a {@code double} exponent.
+     */
+    public static final int     EXP_BIAS        = 1023;
+
+    /**
+     * Bit mask to isolate the sign bit of a {@code double}.
+     */
+    public static final long    SIGN_BIT_MASK   = 0x8000000000000000L;
+
+    /**
+     * Bit mask to isolate the exponent field of a
+     * {@code double}.
+     */
+    public static final long    EXP_BIT_MASK    = 0x7FF0000000000000L;
+
+    /**
+     * Bit mask to isolate the significand field of a
+     * {@code double}.
+     */
+    public static final long    SIGNIF_BIT_MASK = 0x000FFFFFFFFFFFFFL;
+
+    static {
+        // verify bit masks cover all bit positions and that the bit
+        // masks are non-overlapping
+        assert(((SIGN_BIT_MASK | EXP_BIT_MASK | SIGNIF_BIT_MASK) == ~0L) &&
+                (((SIGN_BIT_MASK & EXP_BIT_MASK) == 0L) &&
+                        ((SIGN_BIT_MASK & SIGNIF_BIT_MASK) == 0L) &&
+                        ((EXP_BIT_MASK & SIGNIF_BIT_MASK) == 0L)));
+    }
+}

egklib/src/jvmMain/java/org/cryptobiotic/bigint/FloatConsts.java

@@ -0,0 +1,52 @@
+package org.cryptobiotic.bigint;
+
+public class FloatConsts {
+    /**
+     * Don't let anyone instantiate this class.
+     */
+    private FloatConsts() {}
+
+    /**
+     * The number of logical bits in the significand of a
+     * {@code float} number, including the implicit bit.
+     */
+    public static final int SIGNIFICAND_WIDTH   = 24;
+
+    /**
+     * The exponent the smallest positive {@code float} subnormal
+     * value would have if it could be normalized.
+     */
+    public static final int     MIN_SUB_EXPONENT = Float.MIN_EXPONENT -
+            (SIGNIFICAND_WIDTH - 1);
+
+    /**
+     * Bias used in representing a {@code float} exponent.
+     */
+    public static final int     EXP_BIAS        = 127;
+
+    /**
+     * Bit mask to isolate the sign bit of a {@code float}.
+     */
+    public static final int     SIGN_BIT_MASK   = 0x80000000;
+
+    /**
+     * Bit mask to isolate the exponent field of a
+     * {@code float}.
+     */
+    public static final int     EXP_BIT_MASK    = 0x7F800000;
+
+    /**
+     * Bit mask to isolate the significand field of a
+     * {@code float}.
+     */
+    public static final int     SIGNIF_BIT_MASK = 0x007FFFFF;
+
+    static {
+        // verify bit masks cover all bit positions and that the bit
+        // masks are non-overlapping
+        assert(((SIGN_BIT_MASK | EXP_BIT_MASK | SIGNIF_BIT_MASK) == ~0) &&
+                (((SIGN_BIT_MASK & EXP_BIT_MASK) == 0) &&
+                        ((SIGN_BIT_MASK & SIGNIF_BIT_MASK) == 0) &&
+                        ((EXP_BIT_MASK & SIGNIF_BIT_MASK) == 0)));
+    }
+}