header guards and #pragma once

[a10e29]

hi,

Is it necessary to use both header guards and #pragma once sometimes? I ask because I now have a class that explodes without #pragma once even though I have had guards in place.
edit: I just seems weird to me

thanks

[Ganado]

Can you paste the header file giving problems?

#pragma once is non-standard, but supported by mainstream compilers (gcc, clang, msvc). Using both can't hurt.

[a10e29]

#ifndef SQAUD_H
#define SQUAD_H
#pragma once
#include "Person.h"
#include <array>
#include "Movement.h"
#include "Toolbox.h"
#include "Direction.h"
class Squad
{};
#endif  

edit: I don't think the contents of the class would matter here so I omitted them

[Ganado]

Look very, very closely at the first two lines :)

[a10e29]

Honestly I would have never spotted that on my own. Thanks!

[Niccolo]

You've also discovered why #pragma once was "invented"