What should the ‘pop()’ method return when the stack is empty? [duplicate]

by

The programming-by-contract style would be that having a non-empty stack is a precondition of calling pop, and that calling a method without meeting its preconditions has an undefined outcome. My implementation would throw a std::logic_error, but that would not be required. In C, my implementation would abort via assert.

The caller of popis responsible for ensuring that the precondition that the stack is not empty holds before calling pop. The stack should therefore have an isEmpty method for the caller to check.

More Related Contents:

  1. How do I compare chars (or strings) using void functions, also comparing chars that were taken from a struct array
  2. I wrote this method to delete duplicate elements of a linked list, but it shows segmentation fault, why? [closed]
  3. How to get the maximum number after erasing n digits from the number [closed]
  4. Visual C++ equivalent of GCC’s __attribute__ ((__packed__))
  5. Why is std::map implemented as a red-black tree?
  6. What does C++ struct syntax “a : b” mean
  7. Looking for C++ STL-like vector class but using stack storage
  8. Vectors, structs and std::find
  9. iterate vector, remove certain items as I go
  10. Is there a way to access the underlying container of STL container adaptors?
  11. Trie implementation [closed]
  12. Relative performance of std::vector vs. std::list vs. std::slist?
  13. LRU cache design
  14. A proper way to create a matrix in c++
  15. How to store extremely large numbers?
  16. How to choose between map and unordered_map?
  17. what is “stack alignment”?
  18. adding list items or nodes in linked list
  19. How is vector implemented in C++
  20. Passing array of structures to function c++
  21. Does a standard implementation of a Circular List exist for C++?
  22. TMP: how to generalize a Cartesian Product of Vectors?
  23. What is the best way to create a sparse array in C++?
  24. Why would anyone use set instead of unordered_set?
  25. Easiest way of using min priority queue with key update in C++
  26. How to clone object in C++ ? Or Is there another solution?
  27. Why can’t I use a “break” statement inside a ternary conditional statement in C++?
  28. Data structure padding
  29. Calling erase with iterator vs const_iterator
  30. C++ Class or Struct compatiblity with C struct

Leave a Comment