Subversion Repositories openrisc_2011-10-31

/* Allocate memory region filled with spaces.

   Copyright (C) 1991 Free Software Foundation, Inc.

This file is part of the libiberty library.

Libiberty is free software; you can redistribute it and/or

modify it under the terms of the GNU Library General Public

License as published by the Free Software Foundation; either

version 2 of the License, or (at your option) any later version.

Libiberty is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

Library General Public License for more details.

You should have received a copy of the GNU Library General Public

License along with libiberty; see the file COPYING.LIB.  If

not, write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor,

Boston, MA 02110-1301, USA.  */

/*

@deftypefn Extension char* spaces (int @var{count})

Returns a pointer to a memory region filled with the specified

number of spaces and null terminated.  The returned pointer is

valid until at least the next call.

@end deftypefn

*/

#ifdef HAVE_CONFIG_H

#include "config.h"

#endif

#include "ansidecl.h"

#include "libiberty.h"

#if VMS

#include <stdlib.h>

#include <unixlib.h>

#else

/* For systems with larger pointers than ints, these must be declared.  */

extern PTR malloc (size_t);

extern void free (PTR);

#endif

const char *

spaces (int count)

{

  register char *t;

  static char *buf;

  static int maxsize;

  if (count > maxsize)

    {

      if (buf)

        {

          free (buf);

        }

      buf = (char *) malloc (count + 1);

      if (buf == (char *) 0)

        return 0;

      for (t = buf + count ; t != buf ; )

        {

          *--t = ' ';

        }

      maxsize = count;

      buf[count] = '\0';

    }

  return (const char *) (buf + maxsize - count);

}