We use the **`nextafterf`** function to get the next representable `floating-point` value after the value of the first parameter. It is a variation of `nextafter()`used when the arguments are of type `float`.



# Library for C
```c
#include<math.h>
```

# Library for C++
```c
#include<cmath>
```

# Syntax
```c
float nextafterf( float a, float b);
```

# Parameters

`a`: We start from this float value.

`b`: We go towards this float value.

# Return values

The function returns the next representable `floating-point` value starting from `a`, moving towards `b.` 

If `a` and `b` are equal, then the function returns `b`.

# Code


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

int main()
{
  float answer;
  answer = nextafterf( 1.5, 2.0 );
  printf("The next representable float is :  %.20g\n", answer); //%0.20g is used to represent 20 digits in the floating point number 

  return 0;
} 

What is nextafterf in C/C++?

We use nextafterf to get the next floating-point from a towards b in C/C++.