ETH_Informatik/Informatik_I/Exercise_1/Task_1

Task

Let a, b, c, and d be variables of type int.

• Which of the following character sequences are valid expressions in the sense that they are accepted by a C++ Compiler? Explain your answer.

1. a = b = 5
2. 1 = a
3. ++a + b++
4. a + b = c + d
5. a = 2 b

Assume that all the variables have been defined and correctly initialized and that all expressions are completely independent from each other.

• For each of the expressions that you have identified as valid, decide whether the entire expression is an lvalue or an rvalue, and explain your decision.

• Determine the values of the expressions that you have identified as valid and explain how these values are obtained.