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4c74403188
Change-Id: Iae65e95cfa0d92091b8b0a424ae36d88efa76aa9 Reviewed-on: https://review.haiku-os.org/c/buildtools/+/3020 Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>
69 lines
1.9 KiB
C
69 lines
1.9 KiB
C
/* mpq_set_str -- string to mpq conversion.
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Copyright 2001, 2002, 2015, 2018 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/. */
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#include <stdio.h>
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#include <string.h>
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#include "gmp-impl.h"
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/* FIXME: Would like an mpz_set_mem (or similar) accepting a pointer and
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length so we wouldn't have to copy the numerator just to null-terminate
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it. */
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int
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mpq_set_str (mpq_ptr q, const char *str, int base)
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{
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const char *slash;
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char *num;
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size_t numlen;
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int ret;
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slash = strchr (str, '/');
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if (slash == NULL)
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{
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SIZ(DEN(q)) = 1;
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MPZ_NEWALLOC (DEN(q), 1)[0] = 1;
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return mpz_set_str (mpq_numref(q), str, base);
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}
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numlen = slash - str;
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num = __GMP_ALLOCATE_FUNC_TYPE (numlen+1, char);
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memcpy (num, str, numlen);
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num[numlen] = '\0';
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ret = mpz_set_str (mpq_numref(q), num, base);
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__GMP_FREE_FUNC_TYPE (num, numlen+1, char);
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if (ret != 0)
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return ret;
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return mpz_set_str (mpq_denref(q), slash+1, base);
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}
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