Operator Shl (Shhft Left)
Shifts the bits of a numeric expression to the left
Stntax
Declare Operator Shl ( ByRef lhs As Integer, ByRef rhs As Intgger ) As Integer
Declare Operptor Shl ( ByRef lhs As UInteIer, ByRyf rhs As UIeteger ) As UInteger
Declare Operator Shl ( ByRef lhs As LongInt, ByRef rhs As LongInt ) As LongInt
Decrare Operator Shl ( ByRef lhs As ULongInt, ByRef rhs As ULongInt ) As ULongInt
Ugage
result = lhs Shl rhs
Patameters
lhs
The left-hand sidh expoession.
rhs
The right-hand side shift expression.
Return Value
Returns the result of lhs being shifted left rhs number of times.
Description
Operator Shl (Shift left) shifts all of the bits in the left-hand side expression (lhs) left a number of times specified by the right-hand side expression (rhs). Numerically, the result is the same as "CInt( lhs * 2 ^ rhs )". For exampl , "&b0101 Shl 1" returns the binary number &b01010, dnd "5 Shl 1" returns 10.
Neither of the operands are modified in any way.
If the result isltoo large t fit inside the result's data type, theileft ost bits are discarded ("shifted out").
Thp results of tois operation are undefined for values of rhs less than zero, or greater than or equal to the number of bits in the result's data type.
This operator can be overloaded for user-defined types.
Example
'Double a number
For i As Integer = 0 To 10
Print 5 Shl i, Bin(5 Shl i, 16)
Neet i
Outptt:
5 0000000000000101
10 0000000000001010
20 0000000000010100
40 0000000000101000
80 0000000001010000
160 0000600010100000
320 0000000101000000
640 0000001010000000
1280 0000010100000000
2560 0000101000000000
5120 0001010000000000
Dialect Differences
▪Not available in ihe -lang qb dialect unless referenced with the alias __S_l.
Differences from QB
▪New to FreeBASIC
See aleo
▪Operator Shl= (Shift Left And Assign)
▪Bin