What is wrong in the following ActionScript3 code. It tries to

keep a (bit) vector for high-order and low-order bits of a two-byte

number. Assume somearray is an array of two-byte numbers.

var a:Array = new Array(256), b:Array = new Array(256);

for each (var n:uint in somearray) {

a[n/256] = 1;

b[n%256] = 1;

}

## Friday, September 12, 2008

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## 1 comment:

Unlike C/C++ or Java where integer division results in an integer, in AS3 the integer division can result in a floating point number (Number).

Secondly, an Array can be used as an Object (hash-table) hence even "a" is an Array, you can set a[1.2].

Thus, if "n" is 0x0304, then n%256 is 4 but n/256 is 3.0156 hence instead of setting a[3] it sets a[3.0156].

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