List of usage examples for java.lang Float floatToIntBits
@HotSpotIntrinsicCandidate public static int floatToIntBits(float value)
From source file:MutableFloat.java
/** * Compares this object against some other object. The result is <code>true</code> if and only if the argument is * not <code>null</code> and is a <code>Float</code> object that represents a <code>float</code> that has the * identical bit pattern to the bit pattern of the <code>float</code> represented by this object. For this * purpose, two float values are considered to be the same if and only if the method * {@link Float#floatToIntBits(float)}returns the same int value when applied to each. * <p>/*w w w . j a v a 2 s. c o m*/ * Note that in most cases, for two instances of class <code>Float</code>,<code>f1</code> and <code>f2</code>, * the value of <code>f1.equals(f2)</code> is <code>true</code> if and only if <blockquote> * * <pre> * f1.floatValue() == f2.floatValue() * </pre> * * </blockquote> * <p> * also has the value <code>true</code>. However, there are two exceptions: * <ul> * <li>If <code>f1</code> and <code>f2</code> both represent <code>Float.NaN</code>, then the * <code>equals</code> method returns <code>true</code>, even though <code>Float.NaN==Float.NaN</code> has * the value <code>false</code>. * <li>If <code>f1</code> represents <code>+0.0f</code> while <code>f2</code> represents <code>-0.0f</code>, * or vice versa, the <code>equal</code> test has the value <code>false</code>, even though * <code>0.0f==-0.0f</code> has the value <code>true</code>. * </ul> * This definition allows hashtables to operate properly. * * @param obj * the object to be compared * @return <code>true</code> if the objects are the same; <code>false</code> otherwise. * @see java.lang.Float#floatToIntBits(float) */ public boolean equals(Object obj) { return (obj instanceof MutableFloat) && (Float.floatToIntBits(((MutableFloat) obj).value) == Float.floatToIntBits(value)); }
From source file:org.apache.lucene.index.FieldsWriter.java
final void writeField(FieldInfo fi, Fieldable field) throws IOException { fieldsStream.writeVInt(fi.number);/* ww w.jav a2 s .com*/ int bits = 0; if (field.isTokenized()) bits |= FIELD_IS_TOKENIZED; if (field.isBinary()) bits |= FIELD_IS_BINARY; if (field instanceof NumericField) { switch (((NumericField) field).getDataType()) { case INT: bits |= FIELD_IS_NUMERIC_INT; break; case LONG: bits |= FIELD_IS_NUMERIC_LONG; break; case FLOAT: bits |= FIELD_IS_NUMERIC_FLOAT; break; case DOUBLE: bits |= FIELD_IS_NUMERIC_DOUBLE; break; default: assert false : "Should never get here"; } } fieldsStream.writeByte((byte) bits); if (field.isBinary()) { final byte[] data; final int len; final int offset; data = field.getBinaryValue(); len = field.getBinaryLength(); offset = field.getBinaryOffset(); fieldsStream.writeVInt(len); fieldsStream.writeBytes(data, offset, len); } else if (field instanceof NumericField) { final NumericField nf = (NumericField) field; final Number n = nf.getNumericValue(); switch (nf.getDataType()) { case INT: fieldsStream.writeVVInt(n.intValue()); break; case LONG: fieldsStream.writeVVLong(n.longValue()); break; case FLOAT: fieldsStream.writeVVVInt(Float.floatToIntBits(n.floatValue())); break; case DOUBLE: fieldsStream.writeVVVLong(Double.doubleToLongBits(n.doubleValue())); break; default: assert false : "Should never get here"; } } else { fieldsStream.writeString(field.stringValue()); } }
From source file:CircleOfSquares.java
void ExecuteNextInstruction() { int a, b, result, i; float fa, fb, fresult; Float f;/*from w w w .ja v a2 s. co m*/ int operand0, operand1; int nextOpCode = methodAreaMemorySection.getAtAddress(pcRegister); switch (nextOpCode) { case OpCode.BIPUSH: operand0 = methodAreaMemorySection.getAtAddress(pcRegister + 1); stackMemorySection.setAtAddress(optopRegister, operand0); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; pcRegister += 2; break; case OpCode.FCONST_0: stackMemorySection.setAtAddress(optopRegister, Float.floatToIntBits((float) 0)); stackMemorySection.setLogicalValueAtAddress(optopRegister, "0"); optopRegister += 4; ++pcRegister; break; case OpCode.FCONST_2: stackMemorySection.setAtAddress(optopRegister, Float.floatToIntBits((float) 2)); stackMemorySection.setLogicalValueAtAddress(optopRegister, "2"); optopRegister += 4; ++pcRegister; break; case OpCode.FLOAD_0: a = stackMemorySection.getAtAddress(varsRegister); stackMemorySection.setAtAddress(optopRegister, a); fa = Float.intBitsToFloat(a); stackMemorySection.setLogicalValueAtAddress(optopRegister, Float.toString(fa)); optopRegister += 4; ++pcRegister; break; case OpCode.FMUL: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); fa = Float.intBitsToFloat(a); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); optopRegister -= 4; b = stackMemorySection.getAtAddress(optopRegister); fb = Float.intBitsToFloat(b); fresult = fa * fb; result = Float.floatToIntBits(fresult); stackMemorySection.setAtAddress(optopRegister, result); stackMemorySection.setLogicalValueAtAddress(optopRegister, Float.toString(fresult)); optopRegister += 4; ++pcRegister; break; case OpCode.FSTORE_0: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); stackMemorySection.setAtAddress(varsRegister, a); fa = Float.intBitsToFloat(a); stackMemorySection.setLogicalValueAtAddress(varsRegister, Float.toString(fa)); ++pcRegister; break; case OpCode.FSUB: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); fa = Float.intBitsToFloat(a); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); optopRegister -= 4; b = stackMemorySection.getAtAddress(optopRegister); fb = Float.intBitsToFloat(b); fresult = fb - fa; result = Float.floatToIntBits(fresult); stackMemorySection.setAtAddress(optopRegister, result); stackMemorySection.setLogicalValueAtAddress(optopRegister, Float.toString(fresult)); optopRegister += 4; ++pcRegister; break; case OpCode.GOTO: operand1 = methodAreaMemorySection.getAtAddress(pcRegister + 1); operand0 = methodAreaMemorySection.getAtAddress(pcRegister + 2); int offset = (operand1 << 8) | (operand0 & 0xff); pcRegister += offset; break; case OpCode.IADD: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); optopRegister -= 4; b = stackMemorySection.getAtAddress(optopRegister); result = a + b; stackMemorySection.setAtAddress(optopRegister, result); optopRegister += 4; ++pcRegister; break; case OpCode.ICONST_M1: stackMemorySection.setAtAddress(optopRegister, -1); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.ICONST_0: stackMemorySection.setAtAddress(optopRegister, 0); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.ICONST_1: stackMemorySection.setAtAddress(optopRegister, 1); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.ICONST_2: stackMemorySection.setAtAddress(optopRegister, 2); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.IINC: operand0 = methodAreaMemorySection.getAtAddress(pcRegister + 1); operand1 = methodAreaMemorySection.getAtAddress(pcRegister + 2); a = stackMemorySection.getAtAddress(varsRegister + (operand0 * 4)); a += operand1; stackMemorySection.setAtAddress(varsRegister + (operand0 * 4), a); pcRegister += 3; break; case OpCode.ILOAD_0: a = stackMemorySection.getAtAddress(varsRegister); stackMemorySection.setAtAddress(optopRegister, a); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.ILOAD_1: a = stackMemorySection.getAtAddress(varsRegister + 4); stackMemorySection.setAtAddress(optopRegister, a); stackMemorySection.setLogicalValueAtAddress(optopRegister, StringTable.operand); optopRegister += 4; ++pcRegister; break; case OpCode.IMUL: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); optopRegister -= 4; b = stackMemorySection.getAtAddress(optopRegister); result = a * b; stackMemorySection.setAtAddress(optopRegister, result); optopRegister += 4; ++pcRegister; break; case OpCode.INT2BYTE: a = stackMemorySection.getAtAddress(optopRegister - 4); a = (byte) a; stackMemorySection.setAtAddress(optopRegister - 4, a); stackMemorySection.setLogicalValueAtAddress(optopRegister - 4, StringTable.operand); ++pcRegister; break; case OpCode.ISTORE_0: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); stackMemorySection.setLogicalValueAtAddress(optopRegister, ""); stackMemorySection.setAtAddress(varsRegister, a); ++pcRegister; break; case OpCode.ISTORE_1: optopRegister -= 4; a = stackMemorySection.getAtAddress(optopRegister); stackMemorySection.setLogicalValueAtAddress(optopRegister + 4, ""); stackMemorySection.setAtAddress(varsRegister + 4, a); ++pcRegister; break; } }
From source file:MutableFloat.java
/** * Returns a suitable hashcode for this mutable. * * @return a suitable hashcode */ public int hashCode() { return Float.floatToIntBits(value); }
From source file:com.tibbo.linkserver.plugin.device.file.item.NumericItem.java
public short[] valueToShorts(Number value) { if (dataType == 2 || dataType == 3) { return (new short[] { toShort(value) }); }/*ww w .j a v a 2 s.c o m*/ if (dataType == 16) { short s = toShort(value); return (new short[] { (short) ((s / 1000) % 10 << 12 | (s / 100) % 10 << 8 | (s / 10) % 10 << 4 | s % 10) }); } if (dataType == 4 || dataType == 5) { int i = toInt(value); return (new short[] { (short) (i >> 16), (short) i }); } if (dataType == 6 || dataType == 7) { int i = toInt(value); return (new short[] { (short) i, (short) (i >> 16) }); } if (dataType == 8) { int i = Float.floatToIntBits(value.floatValue()); return (new short[] { (short) (i >> 16), (short) i }); } if (dataType == 9) { int i = Float.floatToIntBits(value.floatValue()); return (new short[] { (short) i, (short) (i >> 16) }); } if (dataType == 17) { int i = toInt(value); return (new short[] { (short) ((i / 0x989680) % 10 << 12 | (i / 0xf4240) % 10 << 8 | (i / 0x186a0) % 10 << 4 | (i / 10000) % 10), (short) ((i / 1000) % 10 << 12 | (i / 100) % 10 << 8 | (i / 10) % 10 << 4 | i % 10) }); } if (dataType == 10 || dataType == 11) { long l = value.longValue(); return (new short[] { (short) (int) (l >> 48), (short) (int) (l >> 32), (short) (int) (l >> 16), (short) (int) l }); } if (dataType == 12 || dataType == 13) { long l = value.longValue(); return (new short[] { (short) (int) l, (short) (int) (l >> 16), (short) (int) (l >> 32), (short) (int) (l >> 48) }); } if (dataType == 14) { long l = Double.doubleToLongBits(value.doubleValue()); return (new short[] { (short) (int) (l >> 48), (short) (int) (l >> 32), (short) (int) (l >> 16), (short) (int) l }); } if (dataType == 15) { long l = Double.doubleToLongBits(value.doubleValue()); return (new short[] { (short) (int) l, (short) (int) (l >> 16), (short) (int) (l >> 32), (short) (int) (l >> 48) }); } else { throw new RuntimeException( (new StringBuilder()).append("Unsupported data type: ").append(dataType).toString()); } }
From source file:ArrayByte.java
public void writeFloat(float v) { writeInt(Float.floatToIntBits(v)); }
From source file:com.facebook.presto.accumulo.io.AccumuloRecordCursor.java
@Override public long getLong(int field) { checkFieldType(field, BIGINT, DATE, INTEGER, REAL, SMALLINT, TIME, TIMESTAMP, TINYINT); Type type = getType(field);/*from w w w . j ava 2 s . c om*/ if (type.equals(BIGINT)) { return serializer.getLong(fieldToColumnName[field]); } else if (type.equals(DATE)) { return MILLISECONDS.toDays(serializer.getDate(fieldToColumnName[field]).getTime()); } else if (type.equals(INTEGER)) { return serializer.getInt(fieldToColumnName[field]); } else if (type.equals(REAL)) { return Float.floatToIntBits(serializer.getFloat(fieldToColumnName[field])); } else if (type.equals(SMALLINT)) { return serializer.getShort(fieldToColumnName[field]); } else if (type.equals(TIME)) { return serializer.getTime(fieldToColumnName[field]).getTime(); } else if (type.equals(TIMESTAMP)) { return serializer.getTimestamp(fieldToColumnName[field]).getTime(); } else if (type.equals(TINYINT)) { return serializer.getByte(fieldToColumnName[field]); } else { throw new PrestoException(NOT_SUPPORTED, "Unsupported type " + getType(field)); } }
From source file:ObjectUtils.java
/** * Return the same value as <code>{@link Float#hashCode()}</code>. * @see Float#hashCode()//from w w w. j a va 2 s . c om */ public static int hashCode(float flt) { return Float.floatToIntBits(flt); }
From source file:us.parr.animl.data.DataTable.java
public static DataTable fromStrings(List<String[]> rows, VariableType[] colTypes, String[] colNames, boolean hasHeaderRow) { if (rows == null || rows.size() == 0) return empty(colTypes, colNames); if (rows.size() == 1 && hasHeaderRow) { return empty(colTypes, colNames); }/*from w w w . j a v a 2 s . c o m*/ if (hasHeaderRow && colNames == null) { colNames = rows.get(0); } int dim = rows.get(0).length; if (colTypes == null) { colTypes = getDefaultColTypes(dim); } if (colNames == null) { colNames = getDefaultColNames(colTypes, dim); } StringTable[] colStringToIntMap = new StringTable[colTypes.length]; // don't waste space on string tables unless we need to for (int j = 0; j < colTypes.length; j++) { if (colTypes[j] == CATEGORICAL_STRING || colTypes[j] == TARGET_CATEGORICAL_STRING) { colStringToIntMap[j] = new StringTable(); } } // process strings into ints using appropriate conversion List<int[]> rows2 = new ArrayList<>(); for (int i = hasHeaderRow ? 1 : 0; i < rows.size(); i++) { String[] row = rows.get(i); int[] rowAsInts = new int[row.length]; for (int j = 0; j < row.length; j++) { int col = 0; VariableType colType = colTypes[j]; String colValue = row[j]; switch (colType) { case CATEGORICAL_INT: case NUMERICAL_INT: case UNUSED_INT: case TARGET_CATEGORICAL_INT: if (!UNKNOWN_VALUE_STRINGS.contains(row[j])) { col = Integer.valueOf(colValue); } break; case CATEGORICAL_STRING: case TARGET_CATEGORICAL_STRING: case UNUSED_STRING: if (!UNKNOWN_VALUE_STRINGS.contains(row[j])) { col = colStringToIntMap[j].add(colValue); } break; case NUMERICAL_FLOAT: case UNUSED_FLOAT: if (!UNKNOWN_VALUE_STRINGS.contains(row[j])) { col = Float.floatToIntBits(Float.valueOf(colValue)); } break; } rowAsInts[j] = col; } rows2.add(rowAsInts); } DataTable t = new DataTable(rows2, colTypes, colNames, null); t.colStringToIntMap = colStringToIntMap; return t; }
From source file:com.sindicetech.siren.search.node.NodeTermQuery.java
/** Returns a hash code value for this object. */ @Override//from w w w. j a v a2 s . c o m public int hashCode() { return Float.floatToIntBits(this.getBoost()) ^ term.hashCode() ^ levelConstraint ^ upperBound ^ lowerBound; }