Does miniaudio require pointer stability?

[aganm]

I want to store my ma_sound instances into a dynamic array which works similarly to the C++ vector type.
My dynamic array allocates a contiguous buffer to put ma_sound objects into, and when this buffer is full,
it reallocates this contiguous buffer to make space for more. The problem is upon reallocation, the dynamic array
buffer could be moved to a new location. If someone was keeping pointers to objects in the dynamic array,
these could be dangling pointers. Now, if I put all of miniaudio objects inside dynamic arrays: let's say I have
a dynamic array of ma_engine, a dynamic array of ma_sound_group, a dynamic array of ma_sound, one dynamic array
per type in the miniaudio library, because I could need more than one instance of these. Then the issue
propagates to every type: the dynamic array could realloc upon pushing into it, and if someone else kept
a pointer to the objects in this array, this will be create dangling pointers and crash.

Does miniaudio object types keep pointers to other miniaudio object types?
Where would it be an issue if I don't have pointer stability for my instances of miniaudio types?

[aganm]

I got my answer by reading the discord server: the answer is yes, it requires pointer stability.

https://discord.com/channels/712952679415939085/712952679881637931/1337547239517589664

This part is definitely wrong and needs to change: std::vector<std::vector<ma_sound>> soundInstances;. You are storing a list of ma_sound object in a vector. When you call push_back(), internally there might be a memory reallocation which will change the address of the sounds. This will result in a crash. The other issue is InitializeSound() is using a locally declared ma_sound object. As soon as the function returns that will be destroyed since it's on the stack. In addition, you are pushing a copy of the sound into the list which again is invalid. Instead, try storing pointers instead std::vector<std::vector<ma_sound*>> soundInstances;. Then in InitializeSound() do ma_sound* sound = new ma_sound;