This version is no longer needed, and probably better off gone. It

tried to parse the format string to estimate how much space it needed.
It didn't know all of the formats..

gnu/lib/libg++/libiberty/vasprintf.c

@@ -1,139 +0,0 @@
-/* Like vsprintf but provides a pointer to malloc'd storage, which must
-   be freed by the caller.
-   Copyright (C) 1994 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., 675 Mass Ave,
-Cambridge, MA 02139, USA.  */
-
-#include <stdio.h>
-#include <varargs.h>
-
-#ifdef TEST
-int global_total_width;
-#endif
-
-unsigned long strtoul ();
-char *malloc ();
-
-int
-vasprintf (result, format, args)
-     char **result;
-     char *format;
-     va_list args;
-{
-  char *p = format;
-  /* Add one to make sure that it is never zero, which might cause malloc
-     to return NULL.  */
-  int total_width = strlen (format) + 1;
-  va_list ap = args;
-
-  while (*p != '\0')
-    {
-      if (*p++ == '%')
-	{
-	  while (strchr ("-+ #0", *p))
-	    ++p;
-	  if (*p == '*')
-	    {
-	      ++p;
-	      total_width += abs (va_arg (ap, int));
-	    }
-	  else
-	    total_width += strtoul (p, &p, 10);
-	  if (*p == '.')
-	    {
-	      ++p;
-	      if (*p == '*')
-		{
-		  ++p;
-		  total_width += abs (va_arg (ap, int));
-		}
-	      else
-	      total_width += strtoul (p, &p, 10);
-	    }
-	  while (strchr ("hlL", *p))
-	    ++p;
-	  /* Should be big enough for any format specifier except %s.  */
-	  total_width += 30;
-	  switch (*p)
-	    {
-	    case 'd':
-	    case 'i':
-	    case 'o':
-	    case 'u':
-	    case 'x':
-	    case 'X':
-	    case 'c':
-	      va_arg (ap, int);
-	      break;
-	    case 'f':
-	    case 'e':
-	    case 'E':
-	    case 'g':
-	    case 'G':
-	      va_arg (ap, double);
-	      break;
-	    case 's':
-	      total_width += strlen (va_arg (ap, char *));
-	      break;
-	    case 'p':
-	    case 'n':
-	      va_arg (ap, char *);
-	      break;
-	    }
-	}
-    }
-#ifdef TEST
-  global_total_width = total_width;
-#endif
-  *result = malloc (total_width);
-  if (*result != NULL)
-    return vsprintf (*result, format, args);
-  else
-    return 0;
-}
-
-#ifdef TEST
-void
-checkit (va_alist)
-     va_dcl
-{
-  va_list args;
-  char *format;
-  char *result;
-
-  va_start (args);
-  format = va_arg (args, char *);
-  vasprintf (&result, format, args);
-  if (strlen (result) < global_total_width)
-    printf ("PASS: ");
-  else
-    printf ("FAIL: ");
-  printf ("%d %s\n", global_total_width, result);
-}
-
-int
-main ()
-{
-  checkit ("%d", 0x12345678);
-  checkit ("%200d", 5);
-  checkit ("%.300d", 6);
-  checkit ("%100.150d", 7);
-  checkit ("%s", "jjjjjjjjjiiiiiiiiiiiiiiioooooooooooooooooppppppppppppaa\n\
-777777777777777777333333333333366666666666622222222222777777777777733333");
-  checkit ("%f%s%d%s", 1.0, "foo", 77, "asdjffffffffffffffiiiiiiiiiiixxxxx");
-}
-#endif /* TEST */