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round() in CCS [solved elegantly]

 
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asmboy



Joined: 20 Nov 2007
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round() in CCS [solved elegantly]
PostPosted: Thu Jan 21, 2016 9:13 am     Reply with quote
Is there an easy equivalent to the c standard :
IN CCS - that does an honest round() function?

where the input argument is a float and the output is
an integer of the 8 or 16 bit flavor ?

Last edited by asmboy on Fri Jan 22, 2016 8:30 pm; edited 1 time in total
Ttelmah



Joined: 11 Mar 2010
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PostPosted: Thu Jan 21, 2016 9:57 am     Reply with quote
Actually, 'round' is not a C standard function. However a lot of libraries do offer it.
It's easy to code as:
Code:

#define round(x) (x<0.0)?(int16)(x-0.5):(int16)(x+0.5)


an int16, will be truncated to an int8 automatically.
You could use a overloaded function to give int32, int16 & int8 versions if required.
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