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'\" t
.\" Title: zmq_errno
.\" Author: [see the "AUTHORS" section]
.\" Generator: DocBook XSL Stylesheets v1.75.2 <http://docbook.sf.net/>
.\" Date: 04/04/2012
.\" Manual: 0MQ Manual
.\" Source: 0MQ 2.2.0
.\" Language: English
.\"
.TH "ZMQ_ERRNO" "3" "04/04/2012" "0MQ 2\&.2\&.0" "0MQ Manual"
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.SH "NAME"
zmq_errno \- retrieve value of errno for the calling thread
.SH "SYNOPSIS"
.sp
\fBint zmq_errno (void);\fR
.SH "DESCRIPTION"
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The \fIzmq_errno()\fR function shall retrieve the value of the \fIerrno\fR variable for the calling thread\&.
.sp
The \fIzmq_errno()\fR function is provided to assist users on non\-POSIX systems who are experiencing issues with retrieving the correct value of \fIerrno\fR directly\&. Specifically, users on Win32 systems whose application is using a different C run\-time library from the C run\-time library in use by 0MQ will need to use \fIzmq_errno()\fR for correct operation\&.
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\fBImportant\fR
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Users not experiencing issues with retrieving the correct value of \fIerrno\fR should not use this function and should instead access the \fIerrno\fR variable directly\&.
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.SH "RETURN VALUE"
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The \fIzmq_errno()\fR function shall return the value of the \fIerrno\fR variable for the calling thread\&.
.SH "ERRORS"
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No errors are defined\&.
.SH "SEE ALSO"
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\fBzmq\fR(7)
.SH "AUTHORS"
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This manual page was written by the 0MQ community\&.
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