<?xml version="1.0" encoding="utf-8"?> boost learn notes

boost learn notes

Documents

http://www.boost.org/doc/libs/1\_53\_0/libs/libraries.htm

Get Started

example.cpp

#include <boost/lambda/lambda.hpp> #include <iostream> #include <iterator> #include <algorithm>int main() {using namespace boost::lambda;typedef std::istream_iterator<int> in;std::for_each(in(std::cin), in(), std::cout << (_1 * 3) << " " ); }

Build it

cl /EHsc /I <path-to-boost> example.cpp

Run initcl if cl is not available.

Run it

echo 1 2 3 | example

Further reading material

http://stlchina.huhoo.net/bin/view.pl/Main/WebSearch?search=BoostSource&scope=all&web=Main

boost::any

以單個對象接受所有型別的數據,以any_cast取出數據。

template<typename ValueType> ValueType * any_cast(any * operand) {return operand && operand->type() == typeid(ValueType) ? &static_cast<any::holder<ValueType> *>(operand->content)->held:0; }

boost::type_traits

type traits的動機是分派,已實現函數重載。

is_array的簡化版

template<bool b_> struct bool_type{ static const bool value = b_; }; template<bool b_> const bool bool_type<b_>::value; template<typename T> struct is_array : bool_type<false>{ }; template<typename T> struct is_array<T[]>: bool_type<true>{ }; template<typename T, unsigned int N> struct is_array<T[N]> : bool_type<true>{ }; int main() { bool is_1 = is_array<int[]>::value; bool is_2 = is_array<int[5]>::value; bool is_3 = is_array<int>::value; }

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Post by: Jalen Wang (轉載請注明出處)

轉載于:https://www.cnblogs.com/jalenwang/archive/2013/05/07/3064233.html

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