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Result of Assignment Operators

Result of Assignment Operators

The assignment operators return the value of the object specified by the left operand after the assignment. The resultant type is the type of the left operand. The result of an assignment expression is always an l-value. These operators have right-to-left associativity. The left operand must be a modifiable l-value.


In ANSI C, the result of an assignment expression is not an l-value. Therefore, the legal C++ expression (a += b) += c is illegal in C.

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