59 lines
1.7 KiB
C
59 lines
1.7 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 the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or (at your
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option) any later version.
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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 Lesser General Public
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License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include "config.h"
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#if HAVE_STDARG
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#include <stdarg.h>
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#else
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#include <varargs.h>
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#endif
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#include <string.h>
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#include "gmp.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 = (char *) (*__gmp_allocate_func) (size);
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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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