61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
/* gmp_vsscanf -- formatted input from a string.
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Copyright 2001, 2002 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 <stdarg.h>
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#include <string.h>
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#include "gmp-impl.h"
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int
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gmp_vsscanf (const char *s, const char *fmt, va_list ap)
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{
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#if SSCANF_WRITABLE_INPUT
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/* We only actually need this if there's standard C types in fmt, and if
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"s" is not already writable, but it's too much trouble to check that,
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and in any case this writable sscanf input business is only for a few
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old systems. */
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size_t size;
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char *alloc;
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int ret;
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size = strlen (s) + 1;
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alloc = __GMP_ALLOCATE_FUNC_TYPE (size, char);
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memcpy (alloc, s, size);
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s = alloc;
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ret = __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
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(*__gmp_free_func) (alloc, size);
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return ret;
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#else
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return __gmp_doscan (&__gmp_sscanf_funs, (void *) &s, fmt, ap);
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#endif
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}
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