27 lines
1.2 KiB
Python
27 lines
1.2 KiB
Python
|
# Copyright 2017 The TensorFlow Authors. All Rights Reserved.
|
||
|
|
#
|
||
|
|
# 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.
|
||
|
|
# ==============================================================================
|
||
|
|
"""The implementation of `tf.data.Dataset.counter`."""
|
||
|
|
|
||
|
|
from tensorflow.python.data.ops import dataset_ops
|
||
|
|
from tensorflow.python.framework import ops
|
||
|
|
|
||
|
|
|
||
|
|
def _counter(start, step, dtype, name=None):
|
||
|
|
with ops.name_scope("counter"):
|
||
|
|
start = ops.convert_to_tensor(start, dtype=dtype, name="start")
|
||
|
|
step = ops.convert_to_tensor(step, dtype=dtype, name="step")
|
||
|
|
return (dataset_ops.Dataset.from_tensors(0, name=name).repeat(None).scan(
|
||
|
|
start, lambda state, _: (state + step, state)))
|