| shl | shift left operator |
| Syntax | A shl B
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| Description | The shl (shift left) operator produces the value of A shifted B bits to the left. Both A and B must be non-negative integers (natural numbers).
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| Example | Assign the base 2 value 11 to i and then shift it left by 2 places and assign the resulting base 2 value 1100 to j.
var i, j : int
i := 2 # 11 % 2#11 = 3 (base 10)
j := i shl 2 % j becomes 2#1100 = 12 (base 10)
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| Details | The shl operator is defined mathematically (in a machine-independent way) as follows: A shl B = A * ( 2**B ). Overflow occurs when the result exceeds the maximum value of the nat4 (4-byte natural number) type. Value A can be of any integer type (as long as it is non-negative) or any natural number type. The shl operator has the same precedence as the * operator.
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| See also | shr (shift right), or, and and xor, which also are bit manipulation operators that act on non-negative values. See also explicitIntegerConstant which describes values such as 2#1100.
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