Having fun abusing the C language

Re:Having fun abusing the C language by stormbrew on Tuesday October 25, 2016 @02:07PM (#12790125)

I mean, as the sibling notes, there's redefining true as false, but I think making all structs unions is much funnier, especially in that it's a uniquely C proposition. There are other languages that allow redefinition of true and false.

Also, I'm not sure how you think it's particularly obvious (as opposed to any other #define trick). It does only work if the project isn't warning-safe, as there are various ways this'll trigger ugly warnings (eg. using designated initializer syntax causes re-initialization warnings), but even then the warnings don't tend to actually tell you it's a union all of a sudden.

If you have others, I'd like to hear them.

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Re:Having fun abusing the C language by raverbashing on Wednesday October 26, 2016 @05:07AM (#12794979)

- Change the alignment of structs

- Remember the order of includes change how they are applied. Have a #define that changes something in a .h that's included in some files but not in others

- (Depending on the software) redefine rand() to be almost predictable or with a short loop

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Re:Having fun abusing the C language by qwertyuiop924 on Tuesday October 25, 2016 @03:36PM (#12790975)

  #define if while
  #define else while(!true){}

That should be interesting.

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