Behavior when dereferencing the .end() of a vector of strings

by

You said:

I’m wondering if it’s “safe” to set a string equal to whatever is returned by dereferencing the off-the-end iterator of a vector of strings

No, it is not safe. From http://en.cppreference.com/w/cpp/container/vector/end

Returns an iterator to the element following the last element of the container.

This element acts as a placeholder; attempting to access it results in undefined behavior.

More Related Contents:

  1. Should a class be thread-safe? [closed]
  2. ifstream* Segmentation fault [closed]
  3. A short C++ program about the pointer
  4. I upgraded C++ projects from Visual Studio 2010 to 2015 still its showing Visual Studio (2010)
  5. How to access a local variable from a different function using pointers?
  6. Why pass by const reference instead of by value?
  7. Why can’t I compile an unordered_map with a pair as key?
  8. ‘printf’ vs. ‘cout’ in C++
  9. How to concatenate two strings in C++?
  10. How do I make my program watch for file modification in C++?
  11. Efficient 128-bit addition using carry flag
  12. CreateFile: direct write operation to raw disk “Access is denied” – Vista, Win7
  13. Override a member function with different return type
  14. Does C++ contain the entire C language? [duplicate]
  15. Issue with cin when spaces are inputted, using string class
  16. How to make cout behave as in binary mode?
  17. Difference between std::system_clock and std::steady_clock?
  18. Do you (really) write exception safe code? [closed]
  19. The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
  20. Why use !! when converting int to bool?
  21. Why is there no 2-byte float and does an implementation already exist?
  22. Use Visual Studio 2012 and compile with older platform toolset?
  23. C++: how to get fprintf results as a std::string w/o sprintf
  24. Mock non-virtual method C++ (gmock)
  25. Why am I able to make a function call using an invalid class pointer
  26. C++11: Replace all non-owning raw pointers with std::shared_ptr()?
  27. Using a static library in Qt Creator
  28. Does the unary + operator have any practical use?
  29. Simple for() loop benchmark takes the same time with any loop bound
  30. “What happened to my SFINAE” redux: conditional template class members?

Leave a Comment