Function rb_define_alloc_func 

pub unsafe extern "C" fn rb_define_alloc_func(
    klass: VALUE,
    func: rb_alloc_func_t,
)

Sets the allocator function of a class.

@param[out] klass The class to modify. @param[in] func An allocator function for the class. @pre klass must be an instance of Class.

Generated by rb-sys for Ruby mri-x86_64-linux-gnu-3.2.3