# C++ Math nextafter()

The nextafter() function represents the next representable value in a specific direction.

Suppose two numbers are 'from' and 'to'. Therefore, the nextafter() function finds the next value of 'from' in the direction of 'to'.

## Parameter

( from, to): These are the floating point values.

## Return value

• If 'from' equals to 'to', it returns the value of 'from'.
• If no error occurs, the next representable value of 'from' is returned.

## Example 1

Let's see a simple example when the value of 'from' and 'to' are equal.

Output:

```Values of from and to are:6.7, 6.7
6.7
```

In the above example, values of 'from' and 'to' are equal. Therefore, the function returns the value of 'from'.

## Example 2

Let's see a simple example when 'from' and 'to' are of same type.

Output:

```Values of from and to are:0, 6
4.94066e-324
```

In the above example, 'from' and 'to' are of same type but are unequal. The nextafter() function returns the value i.e 4.94066e-324

Next TopicC++ Math Functions

### Feedback   