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use universal reference to forward template argument
use std::forward to forward template argument
autofunction(std::vector<big_type>& list, big_type case1, const big_type& case2, auto&& case3)
{
list.push_back(std::move(case1)) // one copy/only move, but call function(list, std::move(val), ..., ...)
list.push_back(case2) // always one copy
list.push_back(std::forward<decltype(case3)>(case3)) // same case1 but have other features
}
autofunction(big_type case1, const big_type& case2, auto&& case3)
{
case1.readonly_func() // (( always one copy
case2.readonly_func() // )) no copy
case3.readonly_func() // )) no copy
}
The text was updated successfully, but these errors were encountered:
const &
for [big type] argumentuniversal reference
to forward template argumentstd::forward
to forward template argumentThe text was updated successfully, but these errors were encountered: