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  1. #include <iostream>
  2. #include <vector>
  3. #include <string>
  4. using namespace std;
  5.  
  6. vector<string> user;
  7.  
  8. void doTest(string newuser) {
  9.  
  10.     if (user.size() < 1){
  11.         cout << "vector is empty, adding " << newuser << "\n";
  12.         user.push_back(newuser);
  13.     }
  14.  
  15.     for (int i = 0; i < user.size(); ++i){
  16.         string name = user[i];
  17.         if (name == newuser) {
  18.         	cout << "index " << i << ": " << newuser << " found, breaking loop\n";
  19.             break;
  20.         }
  21.         else {
  22.             cout << "index " << i << ": " << name << ", adding " << newuser << "\n";
  23.             user.push_back(newuser);
  24.         }
  25.     }
  26. }
  27.  
  28. void printUsers()
  29. {
  30. 	for(auto &u : user) {
  31. 		cout << u << "\n";
  32. 	}
  33. 	cout << "\n";
  34. }
  35.  
  36. int main()
  37. {
  38. 	user.push_back("dbotting");
  39. 	user.push_back("egomez");
  40.  
  41. 	cout << "before tests:\n";
  42. 	printUsers();
  43.  
  44. 	cout << "running test 1:\n";
  45. 	doTest("tongyu");
  46. 	cout << "after test 1:\n";
  47. 	printUsers();
  48.  
  49. 	cout << "running test 2:\n";
  50. 	doTest("tongyu");
  51. 	cout << "after test 2:\n";
  52. 	printUsers();
  53.  
  54. 	return 0;
  55. }
Success #stdin #stdout 0.01s 5504KB
comments (?)
stdin
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Standard input is empty
stdout
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before tests:
dbotting
egomez

running test 1:
index 0: dbotting, adding tongyu
index 1: egomez, adding tongyu
index 2: tongyu found, breaking loop
after test 1:
dbotting
egomez
tongyu
tongyu

running test 2:
index 0: dbotting, adding tongyu
index 1: egomez, adding tongyu
index 2: tongyu found, breaking loop
after test 2:
dbotting
egomez
tongyu
tongyu
tongyu
tongyu
https://ideone.com/oaNXWo
language:
C++ 4.3.2 (gcc-4.3.2)
created:
3 years ago
visibility:
public

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