bitwise operator question

[SuperRoo2]

Hi, came acoss this bit of code & don't fully understand it: Value <<= 1 as in if((Value <<= 1) <= 255)....... I know << is equivalent to XOR but does this mean: Value = Value << 1 if(Value <= 255)... or something else??? Also: value1 ^= value2.... is this equivalent to: value1 = value1 ^ value2 Some of these short cuts get me and do you think I can find out about <<=...try googling that. Any help appreciated

[ziggyfish]

<< means bitshift left >> is bitshift right ^ is XOR. and a <operator>= b is the same as: a = a <operator> b