* or implied. See the License for the specific language governing permissions and limitations under
 * the License.
 */

package com.google.common.math;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.math.DoubleUtils.ensureNonNegative;
import static java.lang.Double.NaN;
import static java.lang.Double.isFinite;
import static java.lang.Double.isNaN;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.google.common.collect.testing.google;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.Lists.newArrayList;
import static com.google.common.collect.testing.Helpers.assertContainsAllOf;
import static com.google.common.collect.testing.features.CollectionSize.ZERO;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.collect;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.collect.testing.Helpers.mapEntry;
import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_QUERIES;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.graph;

import static com.google.common.base.Preconditions.checkState;
import static java.util.Objects.requireNonNull;

import com.google.common.collect.AbstractIterator;
import com.google.common.collect.ImmutableSet;
import com.google.common.collect.Sets;
import java.util.Iterator;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.testing;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.testing.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.google.common.testing;

import static com.google.common.base.Preconditions.checkState;
import static com.google.common.testing.ReflectionFreeAssertThrows.assertThrows;
import static com.google.common.truth.Truth.assertThat;

import com.google.common.annotations.GwtCompatible;

      int startPosition = position;
      String token = consumeTokenIfPresent(matcher);
      checkState(position != startPosition);
      return token;
    }

    char consumeCharacter(CharMatcher matcher) {
      checkState(hasMore());
      char c = previewChar();
      checkState(matcher.matches(c));
      position++;
      return c;
    }

    @CanIgnoreReturnValue

  // via delegate()); it seems inappropriate to throw ISE on this method.
  @Override
  public int hashCode() {
    return delegate.hashCode();
  }

  private void validate() {
    // Don't use checkState(), because we don't want the overhead of generating the error message
    // unless it's actually going to be used; validate() is called for all set method calls, so it
    // needs to be fast.

      int startPosition = position;
      String token = consumeTokenIfPresent(matcher);
      checkState(position != startPosition);
      return token;
    }

    char consumeCharacter(CharMatcher matcher) {
      checkState(hasMore());
      char c = previewChar();
      checkState(matcher.matches(c));
      position++;
      return c;
    }

    @CanIgnoreReturnValue

        transitioned = true;
        if (!ready) {
          return;
        }
        // Update state.
        checkState(
            servicesByState.remove(from, service),
            "Service %s not at the expected location in the state map %s",
            service,
            from);
        checkState(
            servicesByState.put(to, service),
            "Service %s in the state map unexpectedly at %s",