48 lines
2.0 KiB
C
48 lines
2.0 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2014,2015 Colin Walters <walters@verbum.org>.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#pragma once
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#include <stdlib.h>
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#include <glib.h>
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G_BEGIN_DECLS
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/* Taken from https://github.com/systemd/systemd/src/basic/string-util.h
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* at revision v228-666-gcf6c8c4
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*/
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#define glnx_strjoina(a, ...) \
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({ \
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const char *_appendees_[] = { a, __VA_ARGS__ }; \
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char *_d_, *_p_; \
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int _len_ = 0; \
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unsigned _i_; \
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for (_i_ = 0; _i_ < G_N_ELEMENTS(_appendees_) && _appendees_[_i_]; _i_++) \
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_len_ += strlen(_appendees_[_i_]); \
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_p_ = _d_ = alloca(_len_ + 1); \
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for (_i_ = 0; _i_ < G_N_ELEMENTS(_appendees_) && _appendees_[_i_]; _i_++) \
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_p_ = stpcpy(_p_, _appendees_[_i_]); \
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*_p_ = 0; \
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_d_; \
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})
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G_END_DECLS
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