deprecated: 2.30 since: 2.4
This function existed before
g_atomic_int_add() returned the prior
value of the integer (which it now does). It is retained only for
compatibility reasons. Don’t use this function in new code.
Available since: 2.4
Deprecated since: 2.30
A pointer to a #gint.
The data is owned by the caller of the function.
The value to add.