Vomit C++
November 17th, 2007Few days ago I found very interesting piece of code in polish usenet. The code is correct and it works fine but it looks like... yes, like vomit. C++ programmers, can I have a request? Please, do not move features from other languages that we can live without, to the C++.
C++:
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void increment(int &i)
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{
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++i;
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}
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static void test1()
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{
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boost::function<void (int &)> add1=::increment;
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std::vector<std::vector<int>> vec(10, std::vector<int>(10, 2010));
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std::for_each(vec.begin(), vec.end(), boost::lambda::bind(boost::lambda::ll::for_each(),
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boost::lambda::bind(boost::mem_fn((std::vector<int>::iterator(std::vector<int>::*)())
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&std::vector<int>::begin), boost::lambda::_1),
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boost::lambda::bind(boost::mem_fn((std::vector<int>::iterator(std::vector<int>::*)())
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&std::vector<int>::end), boost::lambda::_1),
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add1));
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std::for_each(vec.begin(), vec.end(), boost::lambda::bind(boost::lambda::ll::copy(),
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boost::lambda::bind(boost::mem_fn((std::vector<int>::iterator(std::vector<int>::*)())
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&std::vector<int>::begin), boost::lambda::_1),
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boost::lambda::bind(boost::mem_fn((std::vector<int>::iterator(std::vector<int>::*)())
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&std::vector<int>::end), boost::lambda::_1),
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std::ostream_iterator<int>(std::cout, " ")));
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std::cin.get();
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}
Hey, that’s only about 4 times more code than ordinary loop that does the incrementation and printing – don’t judge it too harshly ;D
Someone reaaaaaally wants to make C++ do functional programming. Here’s an idea, don’t use a hammer on a screw! Use a screwdriver!
Been done. C++ templates – the worst notation for lambda calculus on earth.