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  1. #include <vector>
  2. #include <iostream>
  3.  
  4. int main(int argc, char const *argv[])
  5. {
  6.     std::vector<std::vector<int> > foo(3, std::vector<int>(3, 1));
  7.     std::vector<int>::iterator foo_it = foo[0].begin();
  8.     std::cout << "*foo_it: " << *foo_it << std::endl;
  9.     foo.push_back(std::vector<int>(3, 2));
  10.     std::cout << "*foo_it: " << *foo_it << std::endl;
  11.     return 0;
  12. }
  13.  
Success #stdin #stdout 0s 2964KB
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stdin
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Standard input is empty
stdout
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*foo_it: 1
*foo_it: 1
https://ideone.com/zXQs9
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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