Bitwise operators?

[Doolittle 0]

Anyone know how to simulate flags like the bitwise operators you have in C??

I want to make A = 1, B = 2, C = 4... so if I have a 3 then I have A and B.

Argh.

[dr_eyeball 16]

Maybe use a boolean array to simulate it. Probably easier to work with too and you probably wouldn't need converters then.

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">[true, false, true, true, false] to represent 10110

If still needed, you could then write a loop to calculate the decimal value based on the position of each boolean field value.

Untested. Something like:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">_val = 0;

_pos = count _array;

{

_pos = _pos-1;

_val = _val+(2^_pos);

} forEach _array;

[baddo 0]

I'm just curious, what is the practical problem you are trying to solve with this?  

Or are you just being a 'scientist'.

[Doolittle 0]

I'd like to do stuff like this:

<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">// the flag definitions

#define CAR_LOCKED 0x01 // 0000 0001

#define CAR_PARKED 0x02 // 0000 0010

#define CAR_RESET 0x00 // 0000 0000

// macros to manipulate the flags

#define RESET_CAR(x) (x = CAR_RESET)

#define SET_LOCKED(x) (x |= CAR_LOCKED)

#define SET_PARKED(x) (x |= CAR_PARKED)

#define UNSET_LOCKED(x) (x &= (~CAR_LOCKED))

#define UNSET_PARKED(x) (x &= (~CAR_PARKED))

#define TOGGLE_LOCKED(x) (x ^= CAR_LOCKED)

#define TOGGLE_PARKED(x) (x ^= CAR_PARKED)

// these evaluate to non-zero if the flag is set

#define IS_LOCKED(x) (x & CAR_LOCKED)

#define IS_PARKED(x) (x & CAR_PARKED)

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