Add "<type_traits>" for "std::is_abstract_v".#179

svilen-mihaylov-db wants to merge 1 commit into

David-Haim:masterDavid-Haim/concurrencpp:masterfrom

svilen-mihaylov-db:svilen/add_headersvilen-mihaylov-db/concurrencpp:svilen/add_headerCopy head branch name to clipboard