不受歡迎人物（拉丁語：Persona non grata；複數：personae non gratae，亦簡寫作PNG）是一個政治、外交上的名詞，指被一國外交或警察部门明确公开宣告的特定一类人，这些人被明确列入拒絕入境名单，或被要求限期离境，且均为外交相关人士。這項決定一般而言不須作出公開解釋，儘管其背後原因在一些時候很明顯，例如：逃犯、間諜行為、政治因素。
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I have a function that searches a vector of iterators and returns the iterator if its names matches a string passed as an argument. koalaGraph::PVertex lookUpByName(std::string Name, std::vector<koalaGraph::PVertex>& Vertices) { for (size_t i = 0; i < Vertices.size(); i++) { if(Vertices[i]->info.name == Name) return Vertices[i]; } } My question is how can I implement this as a lambda, to use it in connection with std::find_if ? I'm trying this: std::vector<koalaGraph::PVertex> V; std::string Name; std::find_if(V.begin(), V.end(), [&Name]() {return Name == V->info.name;}) But it says that V an enclosing-function local variable cannot be referenced in a lambda body unless it is in the capture list.
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