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Array of functions? Avoiding if's for calling routines

 
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ivaneduardo747



Joined: 22 Jun 2010
Posts: 3

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Array of functions? Avoiding if's for calling routines
PostPosted: Fri Dec 03, 2010 2:11 pm     Reply with quote
Hello, I'm coding a program that receives a value CMD from the UART (along with other things). I want to call functions depending on the value of CMD. Right now I'm using this:
Code:

if (CMD==0) {
    doThis();
}
else if(CMD==1) {
    doThat();
}
else if(CMD==2) {
    blahBlah();
}

which I find very ineffective and hard to code for 256 functions.
Is there any way I could do some kind of array or lookup table where I assign CMD as the pointer and call the instruction?

Thanks
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0x2BE NOR 0X2BE
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PostPosted: Fri Dec 03, 2010 2:38 pm     Reply with quote
Quote:
Is there any way I could do some kind of array or lookup table ?

Array of function pointers:
http://www.ccsinfo.com/forum/viewtopic.php?t=43696
http://www.ccsinfo.com/forum/viewtopic.php?t=37478
This is probably only reliable if you use the PCH compiler (with 18F PICs).
Gabriel



Joined: 03 Aug 2009
Posts: 1067
Location: Panama

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PostPosted: Sat Dec 04, 2010 6:15 am     Reply with quote
use Switch()....

CMD would be the "case"
...

G.
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