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Graphics / Static vector and static array of sf::Texture, segfault

« on: June 21, 2020, 12:45:04 am »

Hello, i have a problem with static member sf::Texture arrays, could you please tell me what i did wrong?

Compiler: Visual C++ 2019 v142
SFML libraries compiled by me with the same compiler.

Code at the bottom.

When i try to create a static member array or a static member vector of sf::Texture and try to resize it or set its size on declaration, i get a segfault (seen below in call stack, very short). This does NOT happen when the array/vector is not a static member variable, it works fine, nor does it happen with other SFML classes, only sf::Texture. Vector::resize constructs new objects of sf::Texture with default constructor and an array does the same thing, that is create an empty texture object, so i can't think of a reason for this. This didn't happen at all when i used the Mingw version with GCC compiler.

I am doing this in order to load textures for each different game entity so that they are loaded only once in the respective class.

I should also mention that Release version works without any issues, the textures load and the game runs, only Debug version segfaults.
I am using static linked SFML, they are linked in this order: graphics, window, system. Their dependencies are linked in a random order before them. This shouldn't be wrong as there are no linker errors.



This does not work in Debug, segfault but works in Release.

///////////////////////////////////////////////////////////////////////////
#include<SFML/Graphics.hpp>
#include<iostream>
#include<vector>

using namespace std;
class Container {
        static sf::Texture textures[6];
};
sf::Texture Container::textures[6];
int main() {
        return 0;
}
//////////////////////////////////////////////////////////////

Call Stack

        ntdll.dll!77d46015()    Unknown
        ntdll.dll![Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll]       Unknown
>       Test.exe!sf::priv::MutexImpl::lock() Line 52    C++
        Test.exe!sf::Mutex::lock() Line 57      C++
        Test.exe!sf::Lock::Lock(sf::Mutex & mutex) Line 39      C++
        Test.exe!sf::priv::GlContext::initResource() Line 245   C++
        Test.exe!sf::GlResource::GlResource() Line 38   C++
        Test.exe!sf::Texture::Texture() Line 73 C++
        [External Code]
        Test.exe!`dynamic initializer for 'Container::textures''() Line 11      C++
        [External Code]

/////////////////////////////////////
But this does!

#include<SFML/Graphics.hpp>
#include<iostream>
#include<vector>
#include<string>

using namespace std;
class Container {
        static sf::RectangleShape rectangles[6];
};
sf::RectangleShape Container::rectangles[6];
int main() {
       
        return 0;
}