| 1 | |
package org.paneris.bibliomania.fti; |
| 2 | |
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| 3 | 0 | public class FivePacker { |
| 4 | |
private static long ulong(byte b) { |
| 5 | 0 | return b >= 0 ? (long)b : 256L + b; |
| 6 | |
} |
| 7 | |
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| 8 | |
public static long number_(byte[] bytes, int off) { |
| 9 | 0 | return ulong(bytes[off + 0]) << 32 | ulong(bytes[off + 1]) << 24 | |
| 10 | |
ulong(bytes[off + 2]) << 16 | ulong(bytes[off + 3]) << 8 | |
| 11 | |
ulong(bytes[off + 4]); |
| 12 | |
} |
| 13 | |
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| 14 | |
public static void set_(byte[] bytes, int offset, long number) { |
| 15 | 227 | bytes[offset ] = (byte)(number >> 32); |
| 16 | 227 | bytes[offset + 1] = (byte)(number >> 24); |
| 17 | 227 | bytes[offset + 2] = (byte)(number >> 16); |
| 18 | 227 | bytes[offset + 3] = (byte)(number >> 8); |
| 19 | 227 | bytes[offset + 4] = (byte) number ; |
| 20 | 227 | } |
| 21 | |
} |