deque-blog

deque-blog / positionalStrongTypedArguments.cpp

Created February 16, 2018 14:51

	Payment makePayment(Money const& money, FromAccount const& from, ToAccount const& to) {
	// ...
	}

deque-blog / positionalArguments.cpp

Created February 16, 2018 14:36

	Payment makePayment(Money const& money, Account const& from, Account const& to) {
	// ...
	}

deque-blog / noPatternMatchingMap.cpp

Created February 15, 2018 13:26

	for (auto const& pair : map) {
	auto const& key = pair.first;
	auto const& value = pair.second;
	//... do something with the key and value
	}

deque-blog / namedBasedMatching.hs

Created February 14, 2018 14:27

	summary :: Payment -> String
	summary Payment { amount = amount_, from = from_, to = to_ } =
	join " " ["Transfered", show (value amount_), currency amount_, "from", from_, "to", to_]

deque-blog / positionalMatching.hs

Created February 14, 2018 14:26

	summary :: Payment -> String
	summary (Payment amount_ from_ to_) =
	join " " ["Transfered", show (value amount_), currency amount_, "from", from_, "to", to_]

deque-blog / patternMatchingTuple.cpp

Last active February 14, 2018 10:49

	// Thanks to auto, we can grow our tuple and it will not break
	auto tuple = returns_a_tuple();
	auto x = std::get<0>(tuple);
	auto y = std::get<1>(tuple);

	// With pattern matching the following will break upon growing the tuple
	auto [x, y] = returns_a_tuple();

deque-blog / patternMatchingCustom.cpp

Created February 14, 2018 10:40

	struct Payment {
	Money m_amount;
	Account m_from;
	Account m_to;
	};

	// Pattern matching against a custom structure
	Payment payment = ...;
	auto [amount, from, to] = payment;

deque-blog / patternMatchingMap.cpp

Last active February 14, 2018 16:07

	for (auto const& [key, value] : map) {
	//... do something with the key and value
	}

deque-blog / breakingChange2.hs

Last active February 14, 2018 15:31

	data Payment = Payment
	{ amount :: Money
	, from :: Account
	, to :: Account
	, date :: Timestamp
	}

	summary :: Payment -> String
	summary (Payment amount_ from_ to_) = -- Does not compile

deque-blog / breakingChange1.hs

Last active February 14, 2018 15:30

	data Payment = Payment
	{ amount :: Money
	, to :: Account
	, from :: Account
	}

	summary :: Payment -> String
	summary (Payment amount_ from_ to_) = -- From and to are inverted now