34 lines
669 B
C++
34 lines
669 B
C++
//
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// Created by light on 20-1-5.
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//
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#include <iostream>
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#include <vector>
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using namespace std;
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template <template <typename, typename> class OutContainer = vector, typename F,
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class R>
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auto fmap(F &&f, R &&inputs) {
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typedef decay_t<decltype(f(*inputs.begin()))> result_type;
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OutContainer<result_type, allocator<result_type>> result;
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for (auto &&item : inputs) {
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result.push_back(f(item));
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}
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return result;
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}
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// 对每一个数进行加1操作
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int add_1(int x) { return x + 1; }
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int main() {
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vector<int> v{1, 2, 3, 4, 5};
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auto result = fmap(add_1, v);
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for (auto item : result)
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cout << item << " ";
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cout << endl;
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return 0;
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} |