# tensorflow::ops::ReaderReadUpTo Class Reference

# tensorflow::
ops::
ReaderReadUpTo

`
#include <io_ops.h>
`


Returns up to
`
num_records
`
(key, value) pairs produced by a Reader.

## Summary


Will dequeue from the input queue if necessary (e.g. when the Reader needs to start reading from a new file since it has finished with the previous file). It may return less than
`
num_records
`
even before the last batch.


Args:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- reader_handle: Handle to a `
  Reader
  ` .
- queue_handle: Handle to a `
  Queue
  ` , with string work items.
- num_records: number of records to read from `
  Reader
  ` .

<br />


Returns:

- `
  https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output
  ` keys: A 1-D tensor.
- `
  https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output
  ` values: A 1-D tensor.

<br />

| ### Constructors and Destructors ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/reader-read-up-to#classtensorflow_1_1ops_1_1_reader_read_up_to_1a2ec15832620e45ab0ea0a17f650cb1f5 (const :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope & scope, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input reader_handle, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input queue_handle, :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/input#classtensorflow_1_1_input num_records) ` ||

| ### Public attributes ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/reader-read-up-to#classtensorflow_1_1ops_1_1_reader_read_up_to_1af7a8295467508f82a27607fc8f67ed71 ` | ` :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/reader-read-up-to#classtensorflow_1_1ops_1_1_reader_read_up_to_1a5b7389ad7ab4f4d1dc2c976d3dd52e9e ` | ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/operation#classtensorflow_1_1_operation ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/reader-read-up-to#classtensorflow_1_1ops_1_1_reader_read_up_to_1abb8bf94a488824b08dc38f935f62a0be ` | ` :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output ` |

## Public attributes

### keys

```
::tensorflow::Output keys
```

### operation

```
Operation operation
```

### values

```
::tensorflow::Output values
```

## Public functions

### ReaderReadUpTo

```
 ReaderReadUpTo(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input reader_handle,
  ::tensorflow::Input queue_handle,
  ::tensorflow::Input num_records
)
```