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  1. #include <iostream>
  2. #include <memory>
  3. #include <vector>
  4. using namespace std;
  5.  
  6. int main() {
  7.   std::unique_ptr<std::vector<int> > uptr(new std::vector<int>);
  8.  
  9.   uptr->push_back(23);
  10.   uptr->push_back(45);
  11.   uptr->push_back(34);
  12.  
  13.   std::cout << "uptr size = " << uptr->size() << std::endl;
  14.   for (auto i=0; i < uptr->size(); ++i) {
  15.     std::cout << "(*uptr)[" << i << "] = " << (*uptr)[i] << std::endl;
  16.   }
  17.   std::cout << std::endl;
  18.  
  19.   std::vector<int> v = std::move(*uptr);
  20.  
  21.   std::cout << "uptr size post move = " << uptr->size() << std::endl;
  22.   for (auto i=0; i < uptr->size(); ++i) {
  23.     std::cout << "(*uptr)[" << i << "] = " << (*uptr)[i] << std::endl;
  24.   }
  25.   std::cout << std::endl;
  26.  
  27.   std::cout << "moved vec size = " << v.size() << std::endl;
  28.   for (auto i=0; i < v.size(); ++i) {
  29.     std::cout << "v[" << i << "] = " << v[i] << std::endl;
  30.   }
  31.   std::cout << std::endl;
  32.  
  33.   return 0;
  34. }
Success #stdin #stdout 0s 3464KB
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stdin
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stdout
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uptr size = 3
(*uptr)[0] = 23
(*uptr)[1] = 45
(*uptr)[2] = 34

uptr size post move = 0

moved vec size = 3
v[0] = 23
v[1] = 45
v[2] = 34
https://ideone.com/d1OfUm
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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