Annex D (normative) Compatibility features [depr]

D.5 Deprecated volatile types [depr.volatile.type]

1
#
Postfix ++ and -- expressions ([expr.post.incr]) and prefix ++ and -- expressions ([expr.pre.incr]) of volatile-qualified arithmetic and pointer types are deprecated.
[ Example
: 
volatile int velociraptor;
++velociraptor;                     // deprecated
— end example
 ]
2
#
Certain assignments where the left operand is a volatile-qualified non-class type are deprecated; see [expr.ass].
[ Example
: 
int neck, tail;
volatile int brachiosaur;
brachiosaur = neck;                 // OK
tail = brachiosaur;                 // OK
tail = brachiosaur = neck;          // deprecated
brachiosaur += neck;                // deprecated
brachiosaur = brachiosaur + neck;   // OK
— end example
 ]
3
#
A function type ([dcl.fct]) with a parameter with volatile-qualified type or with a volatile-qualified return type is deprecated.
[ Example
: 
volatile struct amber jurassic();                               // deprecated
void trex(volatile short left_arm, volatile short right_arm);   // deprecated
void fly(volatile struct pterosaur* pteranodon);                // OK
— end example
 ]
4
#
A structured binding ([dcl.struct.bind]) of a volatile-qualified type is deprecated.
[ Example
: 
struct linhenykus { short forelimb; };
void park(linhenykus alvarezsauroid) {
  volatile auto [what_is_this] = alvarezsauroid;                // deprecated
  // ...
}
— end example
 ]