Assignment Operators
The table below lists the compound assignment operators and shows an expression using each operator:
| Operator | Example | Equivalent Expression |
|---|---|---|
| += | index += 2 | index = index + 2 |
| -= | *(pointer++) -= 1 | *pointer = *(pointer++) - 1 |
| *= | bonus *= increase | bonus = bonus * increase |
| /= | time /= hours | time = time / hours |
| %= | allowance %= 1000 | allowance = allowance % 1000 |
| <<= | result <<= num | result = result << num |
| >>= | form >>= 1 | form = form >> 1 |
| &= | mask &= 2 | mask = mask & 2 |
| ^= | test ^= pre_test | test = test ^ pre_test |
| |= | flag |= ON | flag = flag | ON |
Although the equivalent expression column shows the left operands (from the example column) evaluated twice, the left operand is evaluated only once.
