# Swapping of coordinate values

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

The function for **BGC_FP32_Vector3**:

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

The function for **BGC_FP64_Vector3**:

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

These functions allow to swap the values of the coordinates of two vectors of the same type.

### Parameters

| Parameter | Direction | Description                                                                              |
| --------- | --------- | ---------------------------------------------------------------------------------------- |
|  vector1  | in / out  | A pointer to a 3D vector where the values of the coordinates of *vector2* will be copied |
|  vector2  | in / out  | A pointer to a 3D vector where the values of the coordinates of *vector1* will be copied |

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

The *vector1* vector will have the same values of the coordinates as *vector2* had before the calling of the function.

And the *vector2* vector will have the same values of the coordinates as *vector1* had before the calling of the function.

### Example

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

int main()
{
    BGC_FP32_Vector3 v1, v2;

    bgc_fp32_vector3_set_values(&v1, -2, 7, 5);
    bgc_fp32_vector3_set_values(&v2, 10, -1, -3);

    bgc_fp32_vector3_swap(&v1, &v2);

    printf("Vector #1: x = %f, y = %f, z = %f\n", v1.x, v1.y, v1.z);
    printf("Vector #2: x = %f, y = %f, z = %f\n", v2.x, v2.y, v2.z);

    return 0;
}
```

Output:

```
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)