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char-1ee/cpp-clockwise-rule.md

Last active June 29, 2022 17:07
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cpp-clockwise-rule.md

Clockwise/Spiral Rule

  • int* - pointer to int
  • int const * - pointer to const int
  • int * const - const pointer to int
  • int const * const - const pointer to const int

Now the first const can be on either side of the type so:

  • const int * == int const *
  • const int * const == int const * const

If you want to go really crazy you can do things like this:

  • int ** - pointer to pointer to int
  • int ** const - a const pointer to a pointer to an int
  • int * const * - a pointer to a const pointer to an int
  • int const ** - a pointer to a pointer to a const int
  • int * const * const - a const pointer to a const pointer to an int

References

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