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.IX Title &quot;ERR_SET_MARK 3&quot;
.TH ERR_SET_MARK 3 &quot;2023-09-11&quot; &quot;1.1.1w&quot; &quot;OpenSSL&quot;
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.SH &quot;NAME&quot;
ERR_set_mark, ERR_pop_to_mark \- set marks and pop errors until mark
.SH &quot;SYNOPSIS&quot;
.IX Header &quot;SYNOPSIS&quot;
.Vb 1
\&amp; #include &lt;openssl/err.h&gt;
\&amp;
\&amp; int ERR_set_mark(void);
\&amp;
\&amp; int ERR_pop_to_mark(void);
.Ve
.SH &quot;DESCRIPTION&quot;
.IX Header &quot;DESCRIPTION&quot;
\&amp;\fBERR_set_mark()\fR sets a mark on the current topmost error record if there
is one.
.PP
\&amp;\fBERR_pop_to_mark()\fR will pop the top of the error stack until a mark is found.
The mark is then removed.  If there is no mark, the whole stack is removed.
.SH &quot;RETURN VALUES&quot;
.IX Header &quot;RETURN VALUES&quot;
\&amp;\fBERR_set_mark()\fR returns 0 if the error stack is empty, otherwise 1.
.PP
\&amp;\fBERR_pop_to_mark()\fR returns 0 if there was no mark in the error stack, which
implies that the stack became empty, otherwise 1.
.SH &quot;COPYRIGHT&quot;
.IX Header &quot;COPYRIGHT&quot;
Copyright 2003\-2017 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L&quot;License\*(R&quot;).  You may not use
this file except in compliance with the License.  You can obtain a copy
in the file \s-1LICENSE\s0 in the source distribution or at
&lt;https://www.openssl.org/source/license.html&gt;.
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