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For example, if the value stored in X (in binary) is 001101 and the value stored in Y is 100001, the statement Z := X or Y; assigns the value 101101 to Z. 6 Operator Logical (bitwise) operators Operation Operand types Result type not bitwise negation integer integer not X and bitwise and integer integer X and Y or bitwise or integer integer X or Y xor bitwise xor integer integer X xor Y shl bitwise shift left integer integer X shl 2 shr bitwise shift right integer integer Y shr I The following rules apply to bitwise operators.

Convention and readability, however, dictate that we write this as Size := 20; Price := 10; Tokens are categorized as special symbols, identifiers, reserved words, directives, numerals, labels, and character strings. A separator can be part of a token only if the token is a character string. Adjacent identifiers, reserved words, numerals, and labels must have one or more separators between them. Syntactic elements 4-1 Fundamental syntactic elements Special symbols Special symbols are nonalphanumeric characters, or pairs of such characters, that have fixed meanings.

Downto statement, then statement is never executed. After the for statement terminates, the value of counter is undefined. For purposes of controlling execution of the loop, the expressions initialValue and finalValue are evaluated only once, before the loop begins. to statement is that the while loop re-evaluates finalValue before each iteration. This can result in noticeably slower performance if finalValue is a complex expression, and it also means that changes to the value of finalValue within statement can affect execution of the loop.

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