patches/gmp/4.2.2/100-mpf_set_str.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Fri Sep 04 17:27:16 2009 +0200 (2009-09-04)
changeset 1512 439a6b292917
parent 466 7f9bbf94b0bb
permissions -rw-r--r--
TODO: update

Add TODO list for m4, autoconf, automake and libtool.
Building our own versions would remove burden from the users
who have older versions on their distributions, and are not
ready/able/allowed to upgrade.
     1 Original patch from http://gmplib.org/patches/mpf_set_str.c.diff
     2 Re-diffed to match crosstool-NG conventions.
     3 
     4 diff -dur gmp-4.2.2.orig/mpf/set_str.c gmp-4.2.2/mpf/set_str.c
     5 --- gmp-4.2.2.orig/mpf/set_str.c	2007-08-30 20:31:40.000000000 +0200
     6 +++ gmp-4.2.2/mpf/set_str.c	2008-01-28 23:05:29.000000000 +0100
     7 @@ -271,8 +271,29 @@
     8        }
     9  
    10      if (expptr != 0)
    11 -      /* FIXME: Should do some error checking here.  */
    12 -      exp_in_base = strtol (expptr, (char **) 0, exp_base);
    13 +      {
    14 +	/* Scan and convert the exponent, in base exp_base.  */
    15 +	long dig, neg = -(long) ('-' == expptr[0]);
    16 +	expptr -= neg;			/* conditional increment */
    17 +	c = (unsigned char) *expptr++;
    18 +	dig = digit_value[c];
    19 +	if (dig >= exp_base)
    20 +	  {
    21 +	    TMP_FREE;
    22 +	    return -1;
    23 +	  }
    24 +	exp_in_base = dig;
    25 +	c = (unsigned char) *expptr++;
    26 +	dig = digit_value[c];
    27 +	while (dig < exp_base)
    28 +	  {
    29 +	    exp_in_base = exp_in_base * exp_base;
    30 +	    exp_in_base += dig;
    31 +	    c = (unsigned char) *expptr++;
    32 +	    dig = digit_value[c];
    33 +	  }
    34 +	exp_in_base = (exp_in_base ^ neg) - neg; /* conditional negation */
    35 +      }
    36      else
    37        exp_in_base = 0;
    38      if (dotpos != 0)