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.\" ========================================================================
.\"
.IX Title "ERR_set_mark 3"
.TH ERR_set_mark 3 2019-12-20 1.0.2u OpenSSL
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
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.SH NAME
ERR_set_mark, ERR_pop_to_mark \- set marks and pop errors until mark
.SH SYNOPSIS
.IX Header "SYNOPSIS"
.Vb 1
\& #include <openssl/err.h>
\&
\& int ERR_set_mark(void);
\&
\& int ERR_pop_to_mark(void);
.Ve
.SH DESCRIPTION
.IX Header "DESCRIPTION"
\&\fBERR_set_mark()\fR sets a mark on the current topmost error record if there
is one.
.PP
\&\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 "RETURN VALUES"
.IX Header "RETURN VALUES"
\&\fBERR_set_mark()\fR returns 0 if the error stack is empty, otherwise 1.
.PP
\&\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 "SEE ALSO"
.IX Header "SEE ALSO"
\&\fBerr\fR\|(3)
.SH HISTORY
.IX Header "HISTORY"
\&\fBERR_set_mark()\fR and \fBERR_pop_to_mark()\fR were added in OpenSSL 0.9.8.