57 lines
1.5 KiB
Markdown
57 lines
1.5 KiB
Markdown
# Copying of coordinate values
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[Русская версия / Russian version](copy-rus.md)
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The function for **BGC_FP32_Vector2**:
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```c
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inline void bgc_fp32_vector2_copy(BGC_FP32_Vector2* const destination, const BGC_FP32_Vector2* const source);
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```
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The function for **BGC_FP64_Vector2**:
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```c
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inline void bgc_fp64_vector2_copy(BGC_FP64_Vector2* const destination, const BGC_FP64_Vector2* const source);
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```
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These functions allow to copy the values of the coordinates of one 2D-vector to another 2D-vector of the same type.
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Each of these functions is equivalent to the following lines of code:
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```c
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destination->x = source->x;
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destination->y = source->y;
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```
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### Parameters
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| Parameter | Direction | Description |
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| ----------- | ---------- | ----------------------------------------------------------------------- |
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| destination | out | A pointer to a vector to set coordinate values from *source* |
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| source | in | A pointer to a vector which coordinates will be copied to *destination* |
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The **source** and **destination** parameters must be valid pointers. The NULL (0) value is also considered invalid.
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### Example
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```c
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#include <stdio.h>
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#include <basic-geometry.h>
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int main()
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{
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BGC_FP32_Vector2 v1, v2;
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v1.x = -2.0f;
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v1.y = 7.4f;
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bgc_fp32_vector2_copy(&v2, &v1);
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printf("x = %f, y = %f\n", v2.x, v2.y);
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return 0;
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}
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```
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[Documentation](../intro-eng.md) / [2D vectors](../vector2-eng.md)
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