#        
## Overview
The **`trunc()`** function in C++ is used to round a given argument `x` towards `0` and return the nearest integer value that is not greater than `x` in magnitude.

## Syntax
```c++
double trunc(double x);
float trunc(float x);
long double trunc(long double x);
```

## Parameters
The `trunc()` function takes a single parameter value, `x`, that represents the value whose truncated value is to be computed.

## Return value
The `trunc()` function returns the nearest integer value to `x` that is not greater than `x`.

## Code example


#include <iostream>
#include <cmath>

using namespace std;

int main()
{
  // creating variables
  double x = 15.6;
  double result;

  // implementing the trunc() function
  result = trunc(x);
  cout << "trunc(" << x << ") = " << result << endl;

  return 0;
}

#    
## Code explanation
* Lines 9-10: We create variables `x` and `result`.

* Line 13: We implement the `trunc()` function on `x` and assign the value to the `result` variable.
* Line 14: We print the `result` variable.

What is the trunc() method in C++?

The trunc() function in C++ rounds a number towards 0 to return the nearest integer not greater in magnitude than the original value.