rotate long variable

[chava]

Hello
I have a char variable, let say N, which stores a number 0-16
I also have a long variable, its name is bits
I want to set bit number "N" in the variable "bits"
i.e: when N=2 the program will set bit number 2 in the variable "bits"

I did: bits!= 1 << N;
but this works only when the value of N is <8
when N>=8 the corresponding bit of "bits" does not affected.

I also tryed "rotate_left(1,N) but this function requieres N to be a numeric element, not a variable

[SteveS]

Not elegant but:

int8 i;
bits = 1;
for( i = N; i > 0; i--) rotate_left(&bits,1);

- or -

int16 BitArray[16] = { 1, 2, 4, 8, ..... };
bits = BitArray[N];

- SteveS

[Neutone]