本文整理了Java中java.lang.Math.toIntExact()方法的一些代码示例，展示了Math.toIntExact()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Math.toIntExact()方法的具体详情如下：
包路径：java.lang.Math
类名称：Math
方法名：toIntExact

Math.toIntExact介绍

暂无

代码示例

代码示例来源：origin: prestodb/presto

private static int preceding(int rowPosition, long value)
{
  if (value > rowPosition) {
    return 0;
  }
  return toIntExact(rowPosition - value);
}

代码示例来源：origin: prestodb/presto

@Override
public int size()
{
  return toIntExact(bufferOffset + bufferPosition);
}

代码示例来源：origin: prestodb/presto

@Override
public int getValueLength(Slice slice, int offset)
{
  return toIntExact(readVInt(slice, offset));
}

代码示例来源：origin: prestodb/presto

public int getFullGcCount()
{
  long startFullGcCount = this.startFullGcCount.get();
  if (startFullGcCount < 0) {
    return 0;
  }
  long endFullGcCount = this.endFullGcCount.get();
  if (endFullGcCount <= 0) {
    endFullGcCount = gcMonitor.getMajorGcCount();
  }
  return toIntExact(max(0, endFullGcCount - startFullGcCount));
}

代码示例来源：origin: prestodb/presto

@Override
public void setPosition(long position)
{
  if (delegate == null) {
    if (position < 0 || position > globalLength) {
      throw new IndexOutOfBoundsException("Invalid position " + position + " for slice with length " + globalLength);
    }
    initialPosition = toIntExact(position);
    return;
  }
  delegate.setPosition(position);
}

代码示例来源：origin: prestodb/presto

@Override
public void writeLong(BlockBuilder blockBuilder, long value)
{
  try {
    toIntExact(value);
  }
  catch (ArithmeticException e) {
    throw new PrestoException(GENERIC_INTERNAL_ERROR, format("Value (%sb) is not a valid single-precision float", Long.toBinaryString(value).replace(' ', '0')));
  }
  blockBuilder.writeInt((int) value).closeEntry();
}

代码示例来源：origin: prestodb/presto

@Override
public int hashCode(Object value)
{
  try {
    return toIntExact(Long.hashCode((long) hashCodeHandle.invokeExact(value)));
  }
  catch (Throwable t) {
    throwIfInstanceOf(t, Error.class);
    throwIfInstanceOf(t, PrestoException.class);
    throw new PrestoException(GENERIC_INTERNAL_ERROR, t);
  }
}

代码示例来源：origin: prestodb/presto

public long getCheckpoint()
{
  // if the decompressed buffer is empty, return a checkpoint starting at the next block
  if (current == null || (current.position() == 0 && current.remaining() == 0)) {
    return createInputStreamCheckpoint(toIntExact(compressedSliceInput.position()), 0);
  }
  // otherwise return a checkpoint at the last compressed block read and the current position in the buffer
  return createInputStreamCheckpoint(currentCompressedBlockOffset, toIntExact(current.position()));
}

代码示例来源：origin: prestodb/presto

@Override
public SqlIntervalYearMonth getExpectedValue(int start, int length)
{
  if (length == 0) {
    return null;
  }
  double sum = 0;
  for (int i = start; i < start + length; i++) {
    sum += i;
  }
  return new SqlIntervalYearMonth(toIntExact(round(sum / length)));
}

代码示例来源：origin: prestodb/presto

@Description("Creates a Bing tile from XY coordinates and zoom level")
@ScalarFunction("bing_tile")
@SqlType(BingTileType.NAME)
public static long toBingTile(@SqlType(StandardTypes.INTEGER) long tileX, @SqlType(StandardTypes.INTEGER) long tileY, @SqlType(StandardTypes.INTEGER) long zoomLevel)
{
  checkZoomLevel(zoomLevel);
  checkCoordinate(tileX, zoomLevel);
  checkCoordinate(tileY, zoomLevel);
  return BingTile.fromCoordinates(toIntExact(tileX), toIntExact(tileY), toIntExact(zoomLevel)).encode();
}

代码示例来源：origin: prestodb/presto

@UsedByGeneratedCode
public static Object objectSubscript(Type elementType, Block array, long index)
{
  checkIndex(array, index);
  int position = toIntExact(index - 1);
  if (array.isNull(position)) {
    return null;
  }
  return elementType.getObject(array, position);
}

代码示例来源：origin: prestodb/presto

@Override
public long getNextJoinPosition(long currentJoinPosition, int probePosition, Page allProbeChannelsPage)
{
  int partition = decodePartition(currentJoinPosition);
  long joinPosition = decodeJoinPosition(currentJoinPosition);
  LookupSource lookupSource = lookupSources[partition];
  long nextJoinPosition = lookupSource.getNextJoinPosition(joinPosition, probePosition, allProbeChannelsPage);
  if (nextJoinPosition < 0) {
    return nextJoinPosition;
  }
  return encodePartitionedJoinPosition(partition, toIntExact(nextJoinPosition));
}

代码示例来源：origin: prestodb/presto

@Override
public StreamDataOutput getStreamDataOutput(int column)
{
  return new StreamDataOutput(buffer::writeDataTo, new Stream(column, streamKind, toIntExact(buffer.getOutputDataSize()), true));
}

代码示例来源：origin: prestodb/presto

@Override
public StreamDataOutput getStreamDataOutput(int column)
{
  return new StreamDataOutput(buffer::writeDataTo, new Stream(column, DATA, toIntExact(buffer.getOutputDataSize()), false));
}

代码示例来源：origin: prestodb/presto

private static Block fixedWidthSequence(long start, long stop, long step, FixedWidthType type)
{
  checkValidStep(start, stop, step);
  int length = toIntExact((stop - start) / step + 1L);
  checkMaxEntry(length);
  BlockBuilder blockBuilder = type.createBlockBuilder(null, length);
  for (long i = 0, value = start; i < length; ++i, value += step) {
    type.writeLong(blockBuilder, value);
  }
  return blockBuilder.build();
}

代码示例来源：origin: prestodb/presto

private Slice getSliceOutput()
  {
    buffer.close();
    DynamicSliceOutput output = new DynamicSliceOutput(toIntExact(buffer.getOutputDataSize()));
    buffer.writeDataTo(output);
    Slice slice = output.slice();
    buffer.reset();
    return slice;
  }
}

代码示例来源：origin: prestodb/presto

@ScalarOperator(CAST)
@LiteralParameters("x")
@SqlType("varchar(x)")
public static Slice castToSlice(@SqlType(StandardTypes.INTERVAL_YEAR_TO_MONTH) long value)
{
  return utf8Slice(IntervalYearMonth.formatMonths(toIntExact(value)));
}

代码示例来源：origin: prestodb/presto

private static SerializedPage readSerializedPage(SliceInput sliceInput)
{
  int positionCount = sliceInput.readInt();
  byte codecMarker = sliceInput.readByte();
  int uncompressedSizeInBytes = sliceInput.readInt();
  int sizeInBytes = sliceInput.readInt();
  Slice slice = sliceInput.readSlice(toIntExact((sizeInBytes)));
  return new SerializedPage(slice, lookupCodecFromMarker(codecMarker), positionCount, uncompressedSizeInBytes);
}

代码示例来源：origin: prestodb/presto

@Description("add the specified amount of time to the given time")
@LiteralParameters("x")
@ScalarFunction("date_add")
@SqlType(StandardTypes.TIME)
public static long addFieldValueTime(ConnectorSession session, @SqlType("varchar(x)") Slice unit, @SqlType(StandardTypes.BIGINT) long value, @SqlType(StandardTypes.TIME) long time)
{
  if (session.isLegacyTimestamp()) {
    ISOChronology chronology = getChronology(session.getTimeZoneKey());
    return modulo24Hour(chronology, getTimeField(chronology, unit).add(time, toIntExact(value)));
  }
  return modulo24Hour(getTimeField(UTC_CHRONOLOGY, unit).add(time, toIntExact(value)));
}

代码示例来源：origin: prestodb/presto

@Description("add the specified amount of time to the given timestamp")
@LiteralParameters("x")
@ScalarFunction("date_add")
@SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE)
public static long addFieldValueTimestampWithTimeZone(
    @SqlType("varchar(x)") Slice unit,
    @SqlType(StandardTypes.BIGINT) long value,
    @SqlType(StandardTypes.TIMESTAMP_WITH_TIME_ZONE) long timestampWithTimeZone)
{
  long millis = getTimestampField(unpackChronology(timestampWithTimeZone), unit).add(unpackMillisUtc(timestampWithTimeZone), toIntExact(value));
  return updateMillisUtc(millis, timestampWithTimeZone);
}