Atomic.intAdd

Atomically adds @val to the value of @atomic.

Think of this operation as an atomic version of { tmp = *atomic; *atomic += val; return tmp; }.

This call acts as a full compiler and hardware memory barrier.

Before version 2.30, this function did not return a value (but g_atomic_int_exchange_and_add() did, and had the same meaning).

struct Atomic
static
int
intAdd
(
int* atomic
,
int val
)

Parameters

atomic int*

a pointer to a #gint or #guint

val int

the value to add

Return: the value of @atomic before the add, signed

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