pub unsafe extern "C" fn lzma_index_dup(
i: *const lzma_index,
allocator: *const lzma_allocator,
) -> *mut lzma_indexpub unsafe extern "C" fn lzma_index_dup(
i: *const lzma_index,
allocator: *const lzma_allocator,
) -> *mut lzma_index