使用set_union对vector结构体进行去除重复值并合并

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set_union对vector结构体进行去除重复值并合并

#include<algorithm>using namespace std;vector<testStruct>testStructVector1;vector<testStruct>testStructVector2;vector<testStruct>unionVector;void CtestDlg::OnBnClickedButton2(){testStruct struct1;for(int i = 0; i < 5; i++){struct1.a = i;struct1.b = i + i;testStructVector1.push_back(struct1);}testStruct struct2;for(int i = 3; i < 8; i++){struct2.a = i;struct2.b = i + i;testStructVector2.push_back(struct2);}auto itrUnion = set_union(testStructVector1.begin(), testStructVector1.end(), testStructVector2.begin(), testStructVector2.end(), back_inserter(unionVector),[] (testStruct struct1, testStruct struct2){return struct1.b <  struct2.b;});}

运行结果：

testStructVector1.b = 0,2,4,6,8

testStructVector2.b = 6,8,10,12,14

合并去重后unionVector.b = 0,2,4,6,8,10,12,14

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