# tensorflow::ops::CheckNumerics Class Reference

# tensorflow::
ops::
CheckNumerics

`
#include <array_ops.h>
`


Checks a tensor for NaN and Inf values.

## Summary


When run, reports an
`
InvalidArgument
`
error if
`
tensor
`
has any values that are not a number (NaN) or infinity (Inf). Otherwise, returns the input tensor.


Example usage:


```
a = tf.Variable(1.0)
tf.debugging.check_numerics(a, message='')
```

<br />


```
b = tf.Variable(np.nan)
try:
  tf.debugging.check_numerics(b, message='Checking b')
except Exception as e:
  assert "Checking b : Tensor had NaN values" in e.message
```

<br />


```
c = tf.Variable(np.inf)
try:
  tf.debugging.check_numerics(c, message='Checking c')
except Exception as e:
  assert "Checking c : Tensor had Inf values" in e.message
```

<br />


Args:

- scope: A [Scope](https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/scope#classtensorflow_1_1_scope) object
- message: Prefix of the error message.

<br />


Returns:

- `
  https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output
  ` : The output tensor.

<br />

| ### Constructors and Destructors ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1af1c19dffbcae2ab5c9ab6ee90d68ec39 (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 tensor, StringPiece message) ` ||

| ### Public attributes ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1ad484b4d4b0b09c34c94fcdbded72b9da ` | ` 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/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1a88bf227894d8d0ee71fc1c7554210e1d ` | ` :: https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/output#classtensorflow_1_1_output ` |

| ### Public functions ||
|---|---|
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1a9fe40ccbb9d64c89016c3e944fc32a9b () const ` | ` ::tensorflow::Node * ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1a886f83ed684f5fff6fa69f1d8abdc2a7 () const ` | ` ` |
| ` https://www.tensorflow.org/versions/r2.5/api_docs/cc/class/tensorflow/ops/check-numerics#classtensorflow_1_1ops_1_1_check_numerics_1a83d2ddff85742175c356e1d71aab2635 () const ` | ` ` |

## Public attributes

### operation

```
Operation operation
```

### output

```
::tensorflow::Output output
```

## Public functions

### CheckNumerics

```
 CheckNumerics(
  const ::tensorflow::Scope & scope,
  ::tensorflow::Input tensor,
  StringPiece message
)
```

### node

```
::tensorflow::Node * node() const 
```

### operator::tensorflow::Input

```
 operator::tensorflow::Input() const 
```

### operator::tensorflow::Output

```
 operator::tensorflow::Output() const 
```