2.2 KiB
[expr.post.incr]
7 Expressions [expr]
7.6 Compound expressions [expr.compound]
7.6.1 Postfix expressions [expr.post]
7.6.1.6 Increment and decrement [expr.post.incr]
The value of a postfix ++ expression is the value obtained by applying the lvalue-to-rvalue conversion ([conv.lval]) to its operand.
[Note 1:
The value obtained is a copy of the original value.
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The operand shall be a modifiable lvalue.
The type of the operand shall be an arithmetic type other than cv bool, or a pointer to a complete object type.
An operand with volatile-qualified type is deprecated; see [depr.volatile.type].
The value of the operand object is modified ([defns.access]) as if it were the operand of the prefix ++ operator ([expr.pre.incr]).
Thevalue computation of the ++ expression is sequenced before the modification of the operand object.
With respect to an indeterminately-sequenced function call, the operation of postfix++ is a single evaluation.
[Note 2:
Therefore, a function call cannot intervene between the lvalue-to-rvalue conversion and the side effect associated with any single postfix ++ operator.
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The result is a prvalue.
The type of the result is the cv-unqualified version of the type of the operand.
The operand of postfix -- is decremented analogously to the postfix ++ operator.
[Note 3:
For prefix increment and decrement, see [expr.pre.incr].
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