文件操作 - ERR_set_mark.pod
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文件: /usr/local/src/openssl-1.1.1w/doc/man3/ERR_set_mark.pod
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=pod =head1 NAME ERR_set_mark, ERR_pop_to_mark - set marks and pop errors until mark =head1 SYNOPSIS #include <openssl/err.h> int ERR_set_mark(void); int ERR_pop_to_mark(void); =head1 DESCRIPTION ERR_set_mark() sets a mark on the current topmost error record if there is one. ERR_pop_to_mark() 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. =head1 RETURN VALUES ERR_set_mark() returns 0 if the error stack is empty, otherwise 1. ERR_pop_to_mark() returns 0 if there was no mark in the error stack, which implies that the stack became empty, otherwise 1. =head1 COPYRIGHT Copyright 2003-2017 The OpenSSL Project Authors. All Rights Reserved. Licensed under the OpenSSL license (the "License"). You may not use this file except in compliance with the License. You can obtain a copy in the file LICENSE in the source distribution or at L<https://www.openssl.org/source/license.html>. =cut
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