Function libpulse_sys::pa_cvolume_snprint_verbose

pub unsafe extern "C" fn pa_cvolume_snprint_verbose(
    s: *mut c_char, 
    l: size_t, 
    c: *const pa_cvolume, 
    map: *const pa_channel_map, 
    print_dB: c_int
) -> *mut c_char