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d8b49e2b73
* src/parse-gram.y (str_to_version): Rename as/move to... * src/strversion.h, src/strversion.c (strversion_to_int): these new files.
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/* Convert version string to int.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of Bison, the GNU Compiler Compiler.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include <config.h>
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#include "system.h"
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#include "strversion.h"
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#include <errno.h>
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#include <intprops.h>
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int
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strversion_to_int (char const *version)
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{
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IGNORE_TYPE_LIMITS_BEGIN
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int res = 0;
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errno = 0;
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char *cp = NULL;
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{
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long major = strtol (version, &cp, 10);
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if (errno || cp == version || *cp != '.' || major < 0
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|| INT_MULTIPLY_WRAPV (major, 10000, &res))
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return -1;
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}
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{
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++cp;
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char *prev = cp;
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long minor = strtol (cp, &cp, 10);
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if (errno || cp == prev || (*cp != '\0' && *cp != '.')
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|| ! (0 <= minor && minor < 100)
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|| INT_MULTIPLY_WRAPV (minor, 100, &minor)
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|| INT_ADD_WRAPV (minor, res, &res))
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return -1;
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}
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if (*cp == '.')
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{
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++cp;
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char *prev = cp;
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long micro = strtol (cp, &cp, 10);
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if (errno || cp == prev || (*cp != '\0' && *cp != '.')
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|| ! (0 <= micro && micro < 100)
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|| INT_ADD_WRAPV (micro, res, &res))
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return -1;
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}
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IGNORE_TYPE_LIMITS_END
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return res;
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}
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