bgc-c/docs/vector2/copy-eng.md

Copying

The copy functions allow you to copy the coordinate values of one vector to another vector.

Function for BgcVector2FP32:

    inline void bgc_vector2_copy_fp32(const BgcVector2FP32* from, BgcVector2FP32* to);

Function for BgcVector2FP64:

    inline void bgc_vector2_copy_fp64(const BgcVector2FP64* from, BgcVector2FP64* to);

Each of these functions is equivalent to the following lines of code:

    to->x1 = from->x1;
    to->x2 = from->x2;

You should not pass invalid pointers to these functions. The NULL (0) value is also considered invalid.

The from parameter must be a pointer to a two-dimensional vector whose coordinates are to be copied. The coordinates of the from vector will not change after the function call.

The to parameter must be a pointer to a two-dimensional vector whose coordinates are to be changed. The coordinates of the to vector will become the same as those of the from vector after the function call.

Example of use:

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

    int main()
    {
        BgcVector2FP32 my_vector1, my_vector2;

        bgc_vector2_set_values_fp32(-2, 7, &my_vector1);

        bgc_vector2_copy_fp32(&my_vector1, &my_vector2);

        printf("x1 = %f, x2 = %f\n", my_vector2.x1, my_vector2.x2);

        return 0;
    }

Documentation / 2D vectors