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Ben Walpole

Hi,

We're currently developing code for the MSP430 using CCE v3 (incidently we might move to v4 at some point).

There are parts of the code where I'm currently using defines where I could possible used enum's for neatness. I was wondering are enum's "inline" in there behaviour the way the defines are? i.e. Are the numeric values of the enum subsitiuted into the code at compile time or is there some kind of fetch that goes on at run time? I'm just trying to work if there are any performance or memory pay-offs for using enum's.

Thanks,

Ben.

over 16 years ago

0 Archaeologist over 16 years ago

TI__Guru* 84285 points

enum declarations define compile-time integer constants, so you should see no difference in performance. No memory is used just by declaring an enum type, but memory will of course be used if you declare a variable of enum type. enum declarations allow for better/stricter type checking because they are part of the language proper, unlike the preprocessor.

0 Ben Walpole over 16 years ago in reply to Archaeologist

Intellectual 790 points

Ok, thanks that's answered my question.

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