# Swapping

[Русская версия / Russian version](swap-rus.md)

The exchange functions allow two vectors of the same type to exchange coordinate
values.

Function for **BGC_FP32_Vector3**:

```c
inline void bgc_fp32_vector3_swap(BGC_FP32_Vector3* const vector1, BGC_FP32_Vector3* const vector2);
```

Function for **BGC_FP64_Vector3**:

```c
inline void bgc_fp64_vector3_swap(BGC_FP64_Vector3* const vector1, BGC_FP64_Vector3* const vector2);
```

The **vector1** and **vector2** parameters must be valid pointers.
The NULL (0) value is considered invalid.

Vector **vector1** after calling this function will have the coordinate values
that vector **vector3** had before calling the function.

And vector **vector3** after calling this function will have the same coordinate
values that vector **vector1** had before calling the function.

Example of use:

```c
#include <stdio.h>
#include <basic-geometry.h>

int main()
{
    BGC_FP32_Vector3 my_vector1, my_vector2;

    bgc_fp32_vector3_set_values(&my_vector1, -2, 7, 5);
    bgc_fp32_vector3_set_values(&my_vector2, 10, -1, -3);

    bgc_fp32_vector3_swap(&my_vector1, &my_vector2);

    printf("Vector #1: x = %f, y = %f, z = %f\n", my_vector1.x, my_vector1.y, my_vector1.z);
    printf("Vector #2: x = %f, y = %f, z = %f\n", my_vector2.x, my_vector2.y, my_vector2.z);

    return 0;
}
```

Result:

```
Vector #1: x = 10.000000, y = -1.000000, z = -3.000000
Vector #2: x = -2.000000, y = 7.000000, z = 5.000000
```

[Documentation](../intro-eng.md) / [3D vectors](../vector3-eng.md)