The **`nextafterl()`** function produces the smallest possible value after a number in a given direction. The declaration of `nextafterl()` is shown below:

```C
long double nextafterl (long double num, long double dir);
```
# Parameters
* `num`: The base number
* `dir`: The direction of the floating point with respect to `num`.
# Return value
The `nextafterl()` function returns the next representable floating-point number after `num` in the direction of `dir`.

# Library
To use the `nextafterl()` function, include the following library:
```C
#include <math.h>
```

# Example
Consider the code snippet below, which demonstrates the implementation of `nextafterl()`:

 


#include <stdio.h>
#include <math.h>

int main() {

  double a = 0.0;
  double b = 1.0;

  double x = nextafter(a, b);

  printf("nextafterl ( %f, %f ) = ( %e ) \n", a, b, x);
  
  return 0;
}

gcc compiler

# Explanation
The `nextafterl()` function is used in line 9 to compute the next representable floating-point number after `a` in the direction of `b`.

What is nextafterl() in C?

Parameters

Return value

Library

Example

Explanation