Function <<=

<<= symbol value

Modifies the value stored in a variable by performing a binary shift left operation with it.

Parameters:

symbol - A symbol object identifying a variable in the current context. The variable must contain a numeric value.

shift - A numeric object represeting the number of bits to shift left the value stored in variable symbol.

Returns:

The new value of the variable.

Modifies the contents of the variable identified by symbol by performing a binary shift left by shift bits on the value it had previously stored. The variable binded to symbol is expected to contain an integer object.

The <<= is a short way to write

lt; $symbol $shift]