'\" t
.\"     Title: zmq_atomic_counter_destroy
.\"    Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 09/06/2020
.\"    Manual: 0MQ Manual
.\"    Source: 0MQ 4.3.1
.\"  Language: English
.\"
.TH "ZMQ_ATOMIC_COUNTER_D" "3" "09/06/2020" "0MQ 4\&.3\&.1" "0MQ Manual"
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.SH "NAME"
zmq_atomic_counter_destroy \- destroy an atomic counter
.SH "SYNOPSIS"
.sp
\fBvoid zmq_atomic_counter_destroy (void **counter_p);\fR
.SH "DESCRIPTION"
.sp
The \fIzmq_atomic_counter_destroy\fR function destroys an atomic counter and nullifies its reference\&. Pass the address of an atomic counter (void **) rather than the counter itself\&. You must destroy all counters that you create, to avoid memory leakage\&. This function uses platform specific atomic operations\&.
.SH "RETURN VALUE"
.sp
The \fIzmq_atomic_counter_destroy()\fR function has no return value\&.
.SH "EXAMPLE"
.PP
\fBTest code for atomic counters\fR. 
.sp
.if n \{\
.RS 4
.\}
.nf
void *counter = zmq_atomic_counter_new ();
assert (zmq_atomic_counter_value (counter) == 0);
assert (zmq_atomic_counter_inc (counter) == 0);
assert (zmq_atomic_counter_inc (counter) == 1);
assert (zmq_atomic_counter_inc (counter) == 2);
assert (zmq_atomic_counter_value (counter) == 3);
assert (zmq_atomic_counter_dec (counter) == 1);
assert (zmq_atomic_counter_dec (counter) == 1);
assert (zmq_atomic_counter_dec (counter) == 0);
zmq_atomic_counter_set (counter, 2);
assert (zmq_atomic_counter_dec (counter) == 1);
assert (zmq_atomic_counter_dec (counter) == 0);
zmq_atomic_counter_destroy (&counter);
return 0;
.fi
.if n \{\
.RE
.\}
.sp
.SH "SEE ALSO"
.sp
\fBzmq_atomic_counter_new\fR(3) \fBzmq_atomic_counter_set\fR(3) \fBzmq_atomic_counter_inc\fR(3) \fBzmq_atomic_counter_dec\fR(3) \fBzmq_atomic_counter_value\fR(3)
.SH "AUTHORS"
.sp
This page was written by the 0MQ community\&. To make a change please read the 0MQ Contribution Policy at \m[blue]\fBhttp://www\&.zeromq\&.org/docs:contributing\fR\m[]\&.