std :: bind to std :: function? [英] std::bind to std::function?
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问题描述
我得到一个编译错误使用这个:
I get a compile error using this:
std::vector<std::function<int(int)>> functions;
std::function<int(int, int)> foo = [](int a, int b){};
std::function<int(int)> bar = std::bind(foo, 2);
functions.push_back(bar);
我得到的错误是:
/usr/include/c++/4.6/functional:1764:40: error: no match for call to '(std::_Bind<std::function<int(int, int)>(int)>) (int)'
有人可以告诉我如何转换std: :bind into a std :: function?
Can someone tell me how to convert a std::bind into a std::function?
推荐答案
std::function<int(int)> bar = std::bind(foo, 2, std::placeholders::_1);
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