set enumeration size

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

set enumeration size

615 Views
barbercolman
Contributor III

KDS will will create a 8 or 16 bit value based on the number of elements is an enumeration. This is great for optimization but causes issues where a fixed size is expected. We worked around this issue by setting an element to 65535. But it is not clean. Is there a way to force enums to UInt16 in KDS?

Labels (1)
0 Kudos
1 Reply

378 Views
BlackNight
NXP Employee
NXP Employee

Hi Dale,

this is actually not a question about KDS, this is a question about compilers (well, gcc).

There is a good article about this topic:

http://stackoverflow.com/questions/1113855/is-the-sizeofenum-sizeofint-always

and you will find more if you search the internet e.g. for

gnu gcc force enum size

Some compilers have options to set the size. To my knowledge in gcc you only can set an option to pack (or making the enums 'short'), which is exactly what you do *not* want. So setting a dummy element with a value > one byte what I would do too. I don't see any other solution.

Erich

0 Kudos