Utility methods for packing/unpacking primitive values in/out of byte arrays
using big-endian byte ordering.
| Method from java.io.Bits Detail: |
static boolean getBoolean(byte[] b,
int off) {
return b[off] != 0;
}
|
static char getChar(byte[] b,
int off) {
return (char) ((b[off + 1] & 0xFF) +
(b[off] < < 8));
}
|
static double getDouble(byte[] b,
int off) {
return Double.longBitsToDouble(getLong(b, off));
}
|
static float getFloat(byte[] b,
int off) {
return Float.intBitsToFloat(getInt(b, off));
}
|
static int getInt(byte[] b,
int off) {
return ((b[off + 3] & 0xFF) ) +
((b[off + 2] & 0xFF) < < 8) +
((b[off + 1] & 0xFF) < < 16) +
((b[off ] ) < < 24);
}
|
static long getLong(byte[] b,
int off) {
return ((b[off + 7] & 0xFFL) ) +
((b[off + 6] & 0xFFL) < < 8) +
((b[off + 5] & 0xFFL) < < 16) +
((b[off + 4] & 0xFFL) < < 24) +
((b[off + 3] & 0xFFL) < < 32) +
((b[off + 2] & 0xFFL) < < 40) +
((b[off + 1] & 0xFFL) < < 48) +
(((long) b[off]) < < 56);
}
|
static short getShort(byte[] b,
int off) {
return (short) ((b[off + 1] & 0xFF) +
(b[off] < < 8));
}
|
static void putBoolean(byte[] b,
int off,
boolean val) {
b[off] = (byte) (val ? 1 : 0);
}
|
static void putChar(byte[] b,
int off,
char val) {
b[off + 1] = (byte) (val );
b[off ] = (byte) (val > > > 8);
}
|
static void putDouble(byte[] b,
int off,
double val) {
putLong(b, off, Double.doubleToLongBits(val));
}
|
static void putFloat(byte[] b,
int off,
float val) {
putInt(b, off, Float.floatToIntBits(val));
}
|
static void putInt(byte[] b,
int off,
int val) {
b[off + 3] = (byte) (val );
b[off + 2] = (byte) (val > > > 8);
b[off + 1] = (byte) (val > > > 16);
b[off ] = (byte) (val > > > 24);
}
|
static void putLong(byte[] b,
int off,
long val) {
b[off + 7] = (byte) (val );
b[off + 6] = (byte) (val > > > 8);
b[off + 5] = (byte) (val > > > 16);
b[off + 4] = (byte) (val > > > 24);
b[off + 3] = (byte) (val > > > 32);
b[off + 2] = (byte) (val > > > 40);
b[off + 1] = (byte) (val > > > 48);
b[off ] = (byte) (val > > > 56);
}
|
static void putShort(byte[] b,
int off,
short val) {
b[off + 1] = (byte) (val );
b[off ] = (byte) (val > > > 8);
}
|