init_bit_array

Sets up array to hold count bits, all cleared, replacing whatever it was. Allocates the words with the array's allocator, taking context.allocator if it has none.

Use it on a Bit_Array that holds no storage, such as a zeroed one or one after deinit; storage it already owned would leak. A negative count fails an assert.

bits: Bit_Array;
init_bit_array(*bits, 16);
assert(bits.count == 16 && !bits[3]);
deinit(*bits);

init_bit_array :: (array: *Bit_Array, count: int)