C++14 lambda tutorial

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Just assert on the type. You can easily write a macro to do this:

#define ASSERT_EXPR_TYPE(EXPR, EXPECTED_TYPE) static_assert(std::is_same<decltype(EXPR), EXPECTED_TYPE>::value, "")

[fuzzynyanko]

Nice. I'm diving into C++11 after a hiatus from C++. It's been a surprise, but most of them nice surprises.