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### Assignment Operators

D provides the following binary assignment operators for modifying D variables. You can only modify D variables and arrays. Kernel data objects and constants may not be modified using the D assignment operators. The assignment operators have the same meaning as they do in ANSI-C.

Table 2-10 D Assignment Operators

 = set the left-hand operand equal to the right-hand expression value += increment the left-hand operand by the right-hand expression value -= decrement the left-hand operand by the right-hand expression value *= multiply the left-hand operand by the right-hand expression value /= divide the left-hand operand by the right-hand expression value %= modulo the left-hand operand by the right-hand expression value |= bitwise OR the left-hand operand with the right-hand expression value &= bitwise AND the left-hand operand with the right-hand expression value ^= bitwise XOR the left-hand operand with the right-hand expression value <<= shift the left-hand operand left by the number of bits specified by the right-hand expression value >>= shift the left-hand operand right by the number of bits specified by the right-hand expression value

Aside from the assignment operator =, the other assignment operators are provided as shorthand for using the = operator with one of the other operators described earlier. For example, the expression x = x + 1 is equivalent to the expression x += 1, except that the expression x is evaluated once. These assignment operators obey the same rules for operand types as the binary forms described earlier.

The result of any assignment operator is an expression equal to the new value of the left-hand expression. You can use the assignment operators or any of the operators described so far in combination to form expressions of arbitrary complexity. You can use parentheses ( ) to group terms in complex expressions.

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