戻り値型を書かない関数定義
＼(^o^)／
[ソース]
#include <iostream> #include <boost/function.hpp> #include <boost/bind.hpp> static const auto plus = [](int a, int b){ return a + b; }; static const auto bind1st = [](boost::function<int(int, int)> f, int a){ return boost::bind(f, a, _1); }; int main(){ auto n = plus(1, 3); std::cout << n << std::endl; std::cout << bind1st(plus, 2)(5) << std::endl; return 0; }
[出力]
4 7
[失ったもの]
- 多重定義
- template 引数
- constexpr
