[expr.pre.incr]

# 7 Expressions [[expr]](./#expr)

## 7.6 Compound expressions [[expr.compound]](expr.compound#expr.pre.incr)

### 7.6.2 Unary expressions [[expr.unary]](expr.unary#expr.pre.incr)

#### 7.6.2.3 Increment and decrement [expr.pre.incr]

[1](#1)

[#](http://github.com/Eelis/draft/tree/9adde4bc1c62ec234483e63ea3b70a59724c745a/source/expressions.tex#L5390)

The operand of prefix ++ or -- shall not be of type cv bool[.](#1.sentence-1)

An operand with volatile-qualified type is deprecated;
see [[depr.volatile.type]](depr.volatile.type "D.4 Deprecated volatile types")[.](#1.sentence-2)

The expression ++x is otherwise equivalent to x+=1 and
the expression --x is otherwise equivalent to x-=1 ([[expr.assign]](expr.assign "7.6.19 Assignment and compound assignment operators"))[.](#1.sentence-3)

[*Note [1](#note-1)*:

For postfix increment and decrement, see [[expr.post.incr]](expr.post.incr "7.6.1.6 Increment and decrement")[.](#1.sentence-4)

— *end note*]