3D vectors in C++

[DetlefS]

Hi,

recently I detected "complex.h" and the float complex data type for C++ project files. Since then dealing with complex numbers got very easy.

I would appreciate the same ease of use for 3D float vectors, i.e. I need a float vector data type and the vector operators.

Is there a comparable include for 3D vectors?

THX

Cheers

Detlef

[Andrew Neil]

I would think this would be generic C++ - not specific to STM32 or CubeIDE ?

What does your favourite internet search engine say?

Have you tried  a search on GitHub ?

eg, https://github.com/cdelv/Vector3D 

[DetlefS]

Hi,

the very first lines of the code in github 

#include <iostream>
#include <cmath>
using namespace std; 

show errors on CubeIDE.

I'm good in C but a C++ newbie. Fixed length vectors are not integrated in C++, as far as I know. Reportedly there are some 3D vector implementations out in the wild. I have the hope this is already included in the compiler for CubeIDE !?

Cheers

Detlef

[TDK · Accepted solution]

Fixed length arrays are implemented in <array> in C++.

#include <array>

std::array<float, 3> vector;

std::array - cppreference.com

[DetlefS]

Yes,

it works.

The pitfall: 'target language C++' is chosen, but you have to rename main.c to main.cpp manually. For main.c gcc throws an error, g++ for main.cpp ist working fine.

THX

Cheers

Detlef

[Andrew Neil]

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@DetlefS wrote:

The pitfall: 'target language C++' is chosen, but you have to rename main.c to main.cpp manually.

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Now that is a bit dumb. 🙄

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@DetlefS wrote:

For main.c gcc throws an error,lef

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Yes: GCC will, by default, compile a file with .c extension as C - not as C++