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What are smart pointers in C++?
  • a)
    Pointers that automatically deallocate memory when no longer needed
  • b)
    Pointers that automatically resize themselves when needed
  • c)
    Pointers that automatically update their values based on external changes
  • d)
    Pointers that can point to multiple memory locations simultaneously
Correct answer is option 'D'. Can you explain this answer?
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What are smart pointers in C++?a)Pointers that automatically deallocat...
The code snippet attempts to assign the address of a function 'fun' to a function pointer variable 'ptr'. However, the syntax used for function pointers is incorrect. The correct syntax for declaring and initializing a function pointer is 'return_type (*ptr)(parameter_types)';. Therefore, the code will result in a compilation error.
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What are smart pointers in C++?a)Pointers that automatically deallocate memory when no longer neededb)Pointers that automatically resize themselves when neededc)Pointers that automatically update their values based on external changesd)Pointers that can point to multiple memory locations simultaneouslyCorrect answer is option 'D'. Can you explain this answer?
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