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template <class InputIterator, class OutputIterator, class T> OutputIterator remove_copy (InputIterator first, InputIterator last, OutputIterator result, const T& val);
说明：
Copies the elements in the range [first,last) to the range beginning at result, except those elements that compare equal to val.
对range进行遍历，除了==val的值，其他的copy到以result开始的位置
算法结果等价于
template <class InputIterator, class OutputIterator, class T> OutputIterator remove_copy (InputIterator first, InputIterator last, OutputIterator result, const T& val) { while (first!=last) { if (!(*first == val)) { *result = *first; ++result; } ++first; } return result; }
用例：
// remove_copy example #include <iostream> // std::cout #include <algorithm> // std::remove_copy #include <vector> // std::vector int main () { int myints[] = {10,20,30,30,20,10,10,20}; // 10 20 30 30 20 10 10 20 std::vector<int> myvector (8); std::remove_copy (myints,myints+8,myvector.begin(),20); // 10 30 30 10 10 0 0 0 std::cout << "myvector contains:"; for (std::vector<int>::iterator it=myvector.begin(); it!=myvector.end(); ++it) std::cout << ‘ ‘ << *it; std::cout << ‘\n‘; return 0; }
原文链接：http://www.cplusplus.com/reference/algorithm/remove_copy/
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原文地址：http://www.cnblogs.com/xkxjy/p/4204903.html
