✏ 编辑: ERR_pop_to_mark.3

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.\" ========================================================================
.\"
.IX Title "ERR_SET_MARK 3"
.TH ERR_SET_MARK 3 "2023-09-11" "1.1.1w" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
.if n .ad l
.nh
.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"
\&\fIERR_set_mark()\fR sets a mark on the current topmost error record if there
is one.
.PP
\&\fIERR_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"
\&\fIERR_set_mark()\fR returns 0 if the error stack is empty, otherwise 1.
.PP
\&\fIERR_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 "COPYRIGHT"
.IX Header "COPYRIGHT"
Copyright 2003\-2017 The OpenSSL Project Authors. All Rights Reserved.
.PP
Licensed under the OpenSSL license (the \*(L"License\*(R").  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
<https://www.openssl.org/source/license.html>.

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