48 lines
1.6 KiB
C
48 lines
1.6 KiB
C
/* *****************************************************************************
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* utils/version.c -- decode and encode a version.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libg1m.
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* libg1m is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libg1m 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.
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* See the GNU 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 License
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* along with libg1m; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************** */
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#include <libg1m/internals.h>
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/**
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* g1m_decode_version:
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* Decode a version from a 'MM.mm.ffff' formatted version string.
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*
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* @arg raw the string to decode from.
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* @arg version the structure where to store the information.
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* @return the error code (if any).
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*/
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int g1m_decode_version(const char *raw, g1m_version_t *version)
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{
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/* TODO: make checks on format */
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/* helper values */
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const int two = '0' + '0' * 10;
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const int four = two + '0' * 100 + '0' * 1000;
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/* get the version data */
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*version = (g1m_version_t){
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.major = raw[0] * 10 + raw[1] - two,
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.minor = raw[3] * 10 + raw[4] - two,
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.revision = raw[6] * 1000 + raw[7] * 100 + raw[8] * 10 + raw[9] - four
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};
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/* no error */
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return (0);
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}
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