Function CFNumberFormatterCreateNumberFromString 

pub unsafe extern "C-unwind" fn CFNumberFormatterCreateNumberFromString(
    allocator: Option<&CFAllocator>,
    formatter: Option<&CFNumberFormatter>,
    string: Option<&CFString>,
    rangep: *mut CFRange,
    options: CFOptionFlags,
) -> Option<CFRetained<CFNumber>>

👎Deprecated: renamed to CFNumberFormatter::new_number_from_string

Available on crate features CFNumber and CFNumberFormatter only.