c++ - C++ 中的 Java Collections.singleton() 有什么类似物吗？

Question

在 Java 中，我可以通过调用来构造单个元素的集合：

Collection<String> c = Collections.singleton("foo");

在 C++ 中（在 Boost 或其他中）是否有类似的单线std::vector或构造？std::set

Answer 1

No, but there is also no need for it. In C++11 you can leverage the compiler's magic support for std::initializer_list<T> (and the new vector constructor that accepts one) by simply writing

vector<string> vec { "foo" };

The same goes for std::set.