DEFAULT

fmod::thread::stack_size

Constant DEFAULT 

Source 
pub const DEFAULT: FMOD_THREAD_STACK_SIZE = FMOD_THREAD_STACK_SIZE_DEFAULT; // 0u32
Expand description

For a given thread use the default listed below, i.e. FMOD_THREAD_TYPE_MIXER uses FMOD_THREAD_STACK_SIZE_MIXER.