cxx11-alternative-function-syntax.h

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// https://en.wikipedia.org/wiki/C%2B%2B11#Alternative_function_syntax
 
// #1
template<class Lhs, class Rhs>
  auto adding_func(const Lhs &lhs, const Rhs &rhs) -> decltype(lhs+rhs) {return lhs + rhs;}
 
// #2
struct SomeStruct  {
    auto func_name(int x, int y) -> int;
};
 
auto SomeStruct::func_name(int x, int y) -> int {
    return x + y;
}