• anonymous
What C data type should I use for array indices? Should it be something like int or long or should it be unsigned int and/or unsigned long?
Computer Science
  • Stacey Warren - Expert
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  • schrodinger
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  • anonymous
Atm I always use size_t or unsigned int
  • rsmith6559
If you might have more than 2**32 elements in your array, you need unsigned long, otherwise it would be overkill.
  • anonymous
array indices can be negative numbers as well. But you must know that the elements preceding the base element are a part of your array. So it depends on you whether to make the indices unsigned or not.

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