# Source code for qiskit.transpiler.passes.utils.check_cx_direction

# This code is part of Qiskit.
#
# (C) Copyright IBM 2017, 2018.
#
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
#
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.

"""Check if the CNOTs follow the right direction with respect to the coupling map.."""

import warnings
from qiskit.transpiler.passes.utils.check_gate_direction import CheckGateDirection

[docs]class CheckCXDirection(CheckGateDirection):
"""Deprecated: use :class:qiskit.transpiler.passes.CheckGateDirection pass instead."""

def __init__(self, coupling_map):
super().__init__(coupling_map)
warnings.warn(
"The CheckCXDirection pass has been deprecated "
"and replaced by a more generic CheckGateDirection pass.",
DeprecationWarning,
stacklevel=2,
)