Function guile_sys::__vsnprintf_chk

pub unsafe extern "C" fn __vsnprintf_chk(
    arg1: *mut c_char, 
    arg2: usize, 
    arg3: c_int, 
    arg4: usize, 
    arg5: *const c_char, 
    arg6: *mut __va_list_tag
) -> c_int