# Quick Start

Aarith is intended to be used as a drop-in replacement for the native data types. You only need to include the headers and can start using Aarith immediately:

```
#include <aarith/float.hpp>
#include <aarith/integer.hpp>
int main()
{
using namespace aarith;
uint64_t a = 10, b = 20;
uinteger<64> a_ = 10, b_ = 20;
std::cout << "a + b = " << (a + b) << "\n";
std::cout << "a_+ b_ = " << (a_ + b_) << "\n";
float x=3.0F, y=2.5F;
floating_point<8,23> x_{3.0F}, y_{2.5F};
std::cout << "x + y = " << (x * y) << "\n";
std::cout << "x_+ y_ = " << (x_ * y_) << "\n";
}
```

This gives the expected output of

```
$ ./arithmetic_example
a + b = 30
a_+ b_ = 30
x * y = 7.5
x_* y_ = 7.5
```

Hint

To make usage of Aarith more convenient, the following type aliases are shipped with Aarith:

```
using half_precision = floating_point<5, 10, uint64_t>;
using single_precision = floating_point<8, 23, uint64_t>;
using double_precison = floating_point<11, 52, uint64_t>;
using quadruple_precision = floating_point<15, 112, uint64_t>;
using bfloat16 = floating_point<8, 7, uint64_t>;
using tensorfloat32 = floating_point<8, 10, uint64_t>;
```

Further examples for how to use aarith can be found at the Uses Cases and in the examples and experiments source code folders (the tests can also give a good idea of how to use aarith).

We also refer the interested user to [Keszocze2021].