回答編集履歴
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追記
test
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@@ -3,3 +3,97 @@
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であるなら、その後 getter[0] を書き換えると setter[0] も書き換わるハズ。やってみて。
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[追記] 勘違いされても困るから:
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```C++
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#include <iostream>
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#include <vector>
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using namespace std;
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struct Data{
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int aoi = 0;
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};
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class A {
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public:
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std::vector<Data*> sender;
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public:
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void a(std::vector<Data*> &getter);
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};
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void A::a(std::vector<Data*> &getter) {
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for (int i=0; i<10; i++) {
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sender.push_back(new Data);
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}
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getter = sender; //ここは"アドレス"を書き換えているという認識で正しいですか？
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}
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int main() {
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A* aaa = new A();
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std::vector<Data*> sss;
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aaa -> a(sss);
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// aaa->sender[0] を書き換えて
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Data* p = new Data(); p->aoi = 9;
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aaa->sender[0] = p;
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// 両者をプリント
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for ( Data* item : sss ) { cout << item->aoi << ' '; } cout << endl;
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for ( Data* item : aaa->sender ) { cout << item->aoi << ' '; } cout << endl;
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return 0;
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}
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```
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実行結果
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```
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0 0 0 0 0 0 0 0 0 0
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9 0 0 0 0 0 0 0 0 0
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```
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ってことで、**コピーされてる**ね。
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