# PR_AtomicAdd

## Syntax

```{code}
#include <pratom.h>

PRInt32 PR_AtomicAdd(
  PRInt32 *ptr,
  PRInt32 val);
```

### Parameter

The function has the following parameters:

`ptr`

: A pointer to the value to increment.

`val`

: A value to be added.

### Returns

The returned value is the result of the addition.

## Description

Atomically add a 32 bit value.