# Copyright 2021 The PECOS Developers
# 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
#
#     https://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.


class PECOSError(Exception):
    """Base exception raised by PECOS."""


class NotSupportedGateError(PECOSError):
    """Indicates a gate not supported by a simulator."""


class MissingCCOPError(PECOSError):
    """Indicates missing a classical function library."""
