
it.unimi.dsi.fastutil.longs.LongIterables Maven / Gradle / Ivy
/*
* Copyright (C) 2020-2021 Sebastiano Vigna
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package it.unimi.dsi.fastutil.longs;
/**
* A class providing static methods and objects that do useful things with
* type-specific iterables.
*
* @see Iterable
*/
public final class LongIterables {
private LongIterables() {
}
/**
* Counts the number of elements returned by a type-specific iterable.
*
* @param iterable
* an iterable.
* @return the number of elements returned by {@code iterable}.
*/
public static long size(final LongIterable iterable) {
long c = 0;
for (@SuppressWarnings("unused")
final long dummy : iterable)
c++;
return c;
}
}
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