Java 类java.util.function.LongBinaryOperator 实例源码
项目:openjdk-jdk10
文件:PrimitiveSumMinMaxTest.java
public void testLongMethods() {
BinaryOperator<Long> sum1 = Long::sum;
LongBinaryOperator sum2 = Long::sum;
BinaryOperator<Long> max1 = Long::max;
LongBinaryOperator max2 = Long::max;
BinaryOperator<Long> min1 = Long::min;
LongBinaryOperator min2 = Long::min;
Comparator<Long> cmp = Long::compare;
long[] numbers = { -1, 0, 1, 100, Long.MAX_VALUE, Long.MIN_VALUE };
for (long i : numbers) {
for (long j : numbers) {
assertEquals(i+j, (long) sum1.apply(i, j));
assertEquals(i+j, sum2.applyAsLong(i, j));
assertEquals(Math.max(i,j), (long) max1.apply(i, j));
assertEquals(Math.max(i,j), max2.applyAsLong(i, j));
assertEquals(Math.min(i,j), (long) min1.apply(i, j));
assertEquals(Math.min(i,j), min2.applyAsLong(i, j));
assertEquals(((Long) i).compareTo(j), cmp.compare(i, j));
}
}
}
项目:jdk8u-jdk
文件:PrimitiveSumMinMaxTest.java
public void testLongMethods() {
BinaryOperator<Long> sum1 = Long::sum;
LongBinaryOperator sum2 = Long::sum;
BinaryOperator<Long> max1 = Long::max;
LongBinaryOperator max2 = Long::max;
BinaryOperator<Long> min1 = Long::min;
LongBinaryOperator min2 = Long::min;
Comparator<Long> cmp = Long::compare;
long[] numbers = { -1, 0, 1, 100, Long.MAX_VALUE, Long.MIN_VALUE };
for (long i : numbers) {
for (long j : numbers) {
assertEquals(i+j, (long) sum1.apply(i, j));
assertEquals(i+j, sum2.applyAsLong(i, j));
assertEquals(Math.max(i,j), (long) max1.apply(i, j));
assertEquals(Math.max(i,j), max2.applyAsLong(i, j));
assertEquals(Math.min(i,j), (long) min1.apply(i, j));
assertEquals(Math.min(i,j), min2.applyAsLong(i, j));
assertEquals(((Long) i).compareTo(j), cmp.compare(i, j));
}
}
}
项目:math
文件:MuVector2l.java
@NonNull
@Override
public MuVector2l map(@NonNull final Vector2l that, @NonNull final LongBinaryOperator operator) {
this.x = operator.applyAsLong(this.x, that.x());
this.y = operator.applyAsLong(this.y, that.y());
return this;
}
项目:math
文件:MuVector4l.java
@NonNull
@Override
public MuVector4l map(@NonNull final Vector4l that, @NonNull final LongBinaryOperator operator) {
this.x = operator.applyAsLong(this.x, that.x());
this.y = operator.applyAsLong(this.y, that.y());
this.z = operator.applyAsLong(this.z, that.z());
this.w = operator.applyAsLong(this.w, that.w());
return this;
}
项目:math
文件:MuVector3l.java
@NonNull
@Override
public MuVector3l map(@NonNull final Vector3l that, @NonNull final LongBinaryOperator operator) {
this.x = operator.applyAsLong(this.x, that.x());
this.y = operator.applyAsLong(this.y, that.y());
this.z = operator.applyAsLong(this.z, that.z());
return this;
}
项目:atomic
文件:AtomicLong.java
public final long getAndAccumulate(long x, LongBinaryOperator accumulatorFunction) {
long prev, next;
do {
prev = value;
next = accumulatorFunction.applyAsLong(prev, x);
} while (!compareAndSet(prev, next));
return prev;
}
项目:atomic
文件:AtomicLong.java
public final long accumulateAndGet(long x, LongBinaryOperator accumulatorFunction) {
long prev, next;
do {
prev = value;
next = accumulatorFunction.applyAsLong(prev, x);
} while (!compareAndSet(prev, next));
return next;
}
项目:atomic
文件:AtomicLongArray.java
public final long getAndAccumulate(int i, long x,
LongBinaryOperator accumulatorFunction) {
long offset = checkedByteOffset(i);
long prev, next;
do {
prev = getRaw(offset);
next = accumulatorFunction.applyAsLong(prev, x);
} while (!compareAndSetRaw(offset, prev, next));
return prev;
}
项目:atomic
文件:AtomicLongArray.java
public final long accumulateAndGet(int i, long x,
LongBinaryOperator accumulatorFunction) {
long offset = checkedByteOffset(i);
long prev, next;
do {
prev = getRaw(offset);
next = accumulatorFunction.applyAsLong(prev, x);
} while (!compareAndSetRaw(offset, prev, next));
return next;
}
项目:OpenJSharp
文件:ReduceOps.java
/**
* Constructs a {@code TerminalOp} that implements a functional reduce on
* {@code long} values.
*
* @param identity the identity for the combining function
* @param operator the combining function
* @return a {@code TerminalOp} implementing the reduction
*/
public static TerminalOp<Long, Long>
makeLong(long identity, LongBinaryOperator operator) {
Objects.requireNonNull(operator);
class ReducingSink
implements AccumulatingSink<Long, Long, ReducingSink>, Sink.OfLong {
private long state;
@Override
public void begin(long size) {
state = identity;
}
@Override
public void accept(long t) {
state = operator.applyAsLong(state, t);
}
@Override
public Long get() {
return state;
}
@Override
public void combine(ReducingSink other) {
accept(other.state);
}
}
return new ReduceOp<Long, Long, ReducingSink>(StreamShape.LONG_VALUE) {
@Override
public ReducingSink makeSink() {
return new ReducingSink();
}
};
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<? super V> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceValuesToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.val));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceValuesToLongTask<K,V>
t = (MapReduceValuesToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:OpenJSharp
文件:ArrayPrefixHelpers.java
/** Root task constructor */
public LongCumulateTask(LongCumulateTask parent,
LongBinaryOperator function,
long[] array, int lo, int hi) {
super(parent);
this.function = function; this.array = array;
this.lo = this.origin = lo; this.hi = this.fence = hi;
int p;
this.threshold =
(p = (hi - lo) / (ForkJoinPool.getCommonPoolParallelism() << 3))
<= MIN_PARTITION ? MIN_PARTITION : p;
}
项目:OpenJSharp
文件:ArrayPrefixHelpers.java
/** Subtask constructor */
LongCumulateTask(LongCumulateTask parent, LongBinaryOperator function,
long[] array, int origin, int fence, int threshold,
int lo, int hi) {
super(parent);
this.function = function; this.array = array;
this.origin = origin; this.fence = fence;
this.threshold = threshold;
this.lo = lo; this.hi = hi;
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
MapReduceEntriesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceEntriesToLongTask<K,V> nextRight,
ToLongFunction<Map.Entry<K,V>> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
MapReduceKeysToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceKeysToLongTask<K,V> nextRight,
ToLongFunction<? super K> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
MapReduceKeysToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceKeysToLongTask<K,V> nextRight,
ToLongFunction<? super K> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
MapReduceValuesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceValuesToLongTask<K,V> nextRight,
ToLongFunction<? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<? super V> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceValuesToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.val));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceValuesToLongTask<K,V>
t = (MapReduceValuesToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
MapReduceEntriesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceEntriesToLongTask<K,V> nextRight,
ToLongFunction<Map.Entry<K,V>> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<Map.Entry<K,V>> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceEntriesToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceEntriesToLongTask<K,V>
t = (MapReduceEntriesToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
MapReduceMappingsToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceMappingsToLongTask<K,V> nextRight,
ToLongBiFunction<? super K, ? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:OpenJSharp
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongBiFunction<? super K, ? super V> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceMappingsToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.key, p.val));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceMappingsToLongTask<K,V>
t = (MapReduceMappingsToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
MapReduceMappingsToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceMappingsToLongTask<K,V> nextRight,
ToLongBiFunction<? super K, ? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:openjdk-jdk10
文件:ParallelPrefix.java
@Test(dataProvider="longSet")
public void testParallelPrefixForLong(long[] data, int fromIndex, int toIndex, LongBinaryOperator op) {
long[] sequentialResult = data.clone();
for (int index = fromIndex + 1; index < toIndex; index++) {
sequentialResult[index ] = op.applyAsLong(sequentialResult[index - 1], sequentialResult[index]);
}
long[] parallelResult = data.clone();
Arrays.parallelPrefix(parallelResult, fromIndex, toIndex, op);
assertArraysEqual(parallelResult, sequentialResult);
long[] parallelRangeResult = Arrays.copyOfRange(data, fromIndex, toIndex);
Arrays.parallelPrefix(parallelRangeResult, op);
assertArraysEqual(parallelRangeResult, Arrays.copyOfRange(sequentialResult, fromIndex, toIndex));
}
项目:jdk8u-jdk
文件:ReduceOps.java
/**
* Constructs a {@code TerminalOp} that implements a functional reduce on
* {@code long} values.
*
* @param identity the identity for the combining function
* @param operator the combining function
* @return a {@code TerminalOp} implementing the reduction
*/
public static TerminalOp<Long, Long>
makeLong(long identity, LongBinaryOperator operator) {
Objects.requireNonNull(operator);
class ReducingSink
implements AccumulatingSink<Long, Long, ReducingSink>, Sink.OfLong {
private long state;
@Override
public void begin(long size) {
state = identity;
}
@Override
public void accept(long t) {
state = operator.applyAsLong(state, t);
}
@Override
public Long get() {
return state;
}
@Override
public void combine(ReducingSink other) {
accept(other.state);
}
}
return new ReduceOp<Long, Long, ReducingSink>(StreamShape.LONG_VALUE) {
@Override
public ReducingSink makeSink() {
return new ReducingSink();
}
};
}
项目:jdk8u-jdk
文件:ArrayPrefixHelpers.java
/** Root task constructor */
public LongCumulateTask(LongCumulateTask parent,
LongBinaryOperator function,
long[] array, int lo, int hi) {
super(parent);
this.function = function; this.array = array;
this.lo = this.origin = lo; this.hi = this.fence = hi;
int p;
this.threshold =
(p = (hi - lo) / (ForkJoinPool.getCommonPoolParallelism() << 3))
<= MIN_PARTITION ? MIN_PARTITION : p;
}
项目:jdk8u-jdk
文件:ArrayPrefixHelpers.java
/** Subtask constructor */
LongCumulateTask(LongCumulateTask parent, LongBinaryOperator function,
long[] array, int origin, int fence, int threshold,
int lo, int hi) {
super(parent);
this.function = function; this.array = array;
this.origin = origin; this.fence = fence;
this.threshold = threshold;
this.lo = lo; this.hi = hi;
}
项目:openjdk-jdk10
文件:ParallelPrefix.java
@DataProvider(name = "longSet")
public static Object[][] longSet(){
return genericData(size -> LongStream.range(0, size).toArray(),
new LongBinaryOperator[]{
Long::sum,
Long::min});
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
MapReduceValuesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceValuesToLongTask<K,V> nextRight,
ToLongFunction<? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<? super K> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceKeysToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.key));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceKeysToLongTask<K,V>
t = (MapReduceKeysToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
MapReduceValuesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceValuesToLongTask<K,V> nextRight,
ToLongFunction<? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<? super V> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceValuesToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.val));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceValuesToLongTask<K,V>
t = (MapReduceValuesToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
MapReduceEntriesToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceEntriesToLongTask<K,V> nextRight,
ToLongFunction<Map.Entry<K,V>> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:openjdk-jdk10
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongFunction<? super K> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceKeysToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.key));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceKeysToLongTask<K,V>
t = (MapReduceKeysToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
MapReduceMappingsToLongTask
(BulkTask<K,V,?> p, int b, int i, int f, Node<K,V>[] t,
MapReduceMappingsToLongTask<K,V> nextRight,
ToLongBiFunction<? super K, ? super V> transformer,
long basis,
LongBinaryOperator reducer) {
super(p, b, i, f, t); this.nextRight = nextRight;
this.transformer = transformer;
this.basis = basis; this.reducer = reducer;
}
项目:jdk8u-jdk
文件:ConcurrentHashMap.java
public final void compute() {
final ToLongBiFunction<? super K, ? super V> transformer;
final LongBinaryOperator reducer;
if ((transformer = this.transformer) != null &&
(reducer = this.reducer) != null) {
long r = this.basis;
for (int i = baseIndex, f, h; batch > 0 &&
(h = ((f = baseLimit) + i) >>> 1) > i;) {
addToPendingCount(1);
(rights = new MapReduceMappingsToLongTask<K,V>
(this, batch >>>= 1, baseLimit = h, f, tab,
rights, transformer, r, reducer)).fork();
}
for (Node<K,V> p; (p = advance()) != null; )
r = reducer.applyAsLong(r, transformer.applyAsLong(p.key, p.val));
result = r;
CountedCompleter<?> c;
for (c = firstComplete(); c != null; c = c.nextComplete()) {
@SuppressWarnings("unchecked")
MapReduceMappingsToLongTask<K,V>
t = (MapReduceMappingsToLongTask<K,V>)c,
s = t.rights;
while (s != null) {
t.result = reducer.applyAsLong(t.result, s.result);
s = t.rights = s.nextRight;
}
}
}
}
项目:jdk8u-jdk
文件:ParallelPrefix.java
@DataProvider
public static Object[][] longSet(){
return genericData(size -> LongStream.range(0, size).toArray(),
new LongBinaryOperator[]{
Long::sum,
Long::min});
}
项目:jdk8u-jdk
文件:ParallelPrefix.java
@Test(dataProvider="longSet")
public void testParallelPrefixForLong(long[] data, int fromIndex, int toIndex, LongBinaryOperator op) {
long[] sequentialResult = data.clone();
for (int index = fromIndex + 1; index < toIndex; index++) {
sequentialResult[index ] = op.applyAsLong(sequentialResult[index - 1], sequentialResult[index]);
}
long[] parallelResult = data.clone();
Arrays.parallelPrefix(parallelResult, fromIndex, toIndex, op);
assertEquals(parallelResult, sequentialResult);
long[] parallelRangeResult = Arrays.copyOfRange(data, fromIndex, toIndex);
Arrays.parallelPrefix(parallelRangeResult, op);
assertEquals(parallelRangeResult, Arrays.copyOfRange(sequentialResult, fromIndex, toIndex));
}
项目:jdk8u-jdk
文件:Serial.java
static void testLongAccumulator() {
LongBinaryOperator plus = (LongBinaryOperator & Serializable) (x, y) -> x + y;
LongAccumulator a = new LongAccumulator(plus, -2);
a.accumulate(34);
LongAccumulator result = echo(a);
if (result.get() != a.get())
throw new RuntimeException("Unexpected value");
a.reset();
result.reset();
if (result.get() != a.get())
throw new RuntimeException("Unexpected value after reset");
checkSerialClassName(a, "java.util.concurrent.atomic.LongAccumulator$SerializationProxy");
}
项目:openjdk-jdk10
文件:ReduceOps.java
/**
* Constructs a {@code TerminalOp} that implements a functional reduce on
* {@code long} values.
*
* @param identity the identity for the combining function
* @param operator the combining function
* @return a {@code TerminalOp} implementing the reduction
*/
public static TerminalOp<Long, Long>
makeLong(long identity, LongBinaryOperator operator) {
Objects.requireNonNull(operator);
class ReducingSink
implements AccumulatingSink<Long, Long, ReducingSink>, Sink.OfLong {
private long state;
@Override
public void begin(long size) {
state = identity;
}
@Override
public void accept(long t) {
state = operator.applyAsLong(state, t);
}
@Override
public Long get() {
return state;
}
@Override
public void combine(ReducingSink other) {
accept(other.state);
}
}
return new ReduceOp<Long, Long, ReducingSink>(StreamShape.LONG_VALUE) {
@Override
public ReducingSink makeSink() {
return new ReducingSink();
}
};
}