Function copy_try_fold
pub(in ::iter::adapters::copied) fn copy_try_fold<T: Copy, Acc, R>(f: impl FnMut(Acc, T) -> R) -> impl FnMut(Acc, &T) -> Rcopy_try_foldpub(in ::iter::adapters::copied) fn copy_try_fold<T: Copy, Acc, R>(f: impl FnMut(Acc, T) -> R) -> impl FnMut(Acc, &T) -> R