Function

GLib-2.0GLibatomic_int_dec_and_testSince 2.4

  • Decrements the value of atomic by 1.

    Think of this operation as an atomic version of { *atomic -= 1; return (*atomic == 0); }.

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

    While atomic has a volatile qualifier, this is a historical artifact and the pointer passed to it should not be volatile.

    Parameters

    • Optionalatomic: any

      a pointer to a gint or guint

    Returns boolean

    true if the resultant value is zero

    2.4