What does a+=5 mean in c++

In C, the = operator is used to add the left operand to the right operand and store the result in the left operand. The specific steps are as follows: Value: Get the current value from the operand on the left. Addition: Add the current value to the operand on the right to get a new value. Assignment: Stores the new value back into the left operand.

The meaning of a = 5 in C

In C, = is a compound assignment operator. Adds the left operand (a) to the right operand (5) and stores the result in the left operand.

The specific process is as follows:

1. Value: Get its current value from variable a.
2. Add: Add the current value to 5 to get a new value.
3. Assignment: Store the new value back into variable a.

Example:

If the current value of variable a is 10, then after the following code is executed, the value of a will be 15:

<code class="cpp">a += 5;</code>

This means that variable a is updated to the original value (10) plus 5, resulting in a new value of 15.

Note:

• = operator can only be used for numeric type variables (such as int, float, double).
• = operator is a unary operator, which means it can only act on one operand. The
• = operator differs from the and -- operators, which update the value of a variable but do not store the new value back into the variable.

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