Programmer Humor

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Tell me the truth ... (lemmy.ml)

submitted 1 month ago by [email protected] to c/[email protected]

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[–] [email protected] 25 points 1 month ago* (last edited 1 month ago) (6 children)

Use bit-fields:

struct {
  bool a : 1;
  bool b : 1;
  bool c : 1;
  //...
};

Edit: careful not to use a 1-bit signed int, since the only values are 0 and -1, not 0 and 1. This tripped me up once.

[–] [email protected] 2 points 1 month ago (4 children)

In a world where a bigger memory chip is more expensive by only a few cents where this would be most useful, is this feature still relevant?

[–] [email protected] 5 points 1 month ago* (last edited 1 month ago)

Yes, firmware running on bare metal requires good resource management. My current development board processor contains 512KB SRAM. That's equivalent to half of the size of an average PDF.

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