* util.c (ruby_strtod, dtoa): initialize more variables for error

  handling.


git-svn-id: http://svn.ruby-lang.org/repos/ruby/trunk@16742 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 5 deletions

diff --git a/util.c b/util.c
index 5e3470f7b..3a39adddc 100644
--- a/util.c
+++ b/util.c
@@ -5,7 +5,7 @@
   $Author$
   created at: Fri Mar 10 17:22:34 JST 1995
 
-  Copyright (C) 1993-2007 Yukihiro Matsumoto
+  Copyright (C) 1993-2008 Yukihiro Matsumoto
 
 **********************************************************************/
 
@@ -48,7 +48,7 @@ ruby_scan_oct(const char *start, int len, int *retlen)
 unsigned long
 ruby_scan_hex(const char *start, int len, int *retlen)
 {
-    static char hexdigit[] = "0123456789abcdef0123456789ABCDEF";
+    static const char hexdigit[] = "0123456789abcdef0123456789ABCDEF";
     register const char *s = start;
     register unsigned long retval = 0;
     char *tmp;
@@ -2384,7 +2384,7 @@ ret0:
 #endif
         dval(rv) = tens[k - 9] * dval(rv) + z;
     }
-    bd0 = 0;
+    bd0 = bb = bd = bs = delta = 0;
     if (nd <= DBL_DIG
 #ifndef RND_PRODQUOT
 #ifndef Honor_FLT_ROUNDS
@@ -3310,7 +3310,7 @@ dtoa(double d, int mode, int ndigits, int *decpt, int *sign, char **rve)
     int denorm;
     ULong x;
 #endif
-    Bigint *b, *b1, *delta, *mlo, *mhi, *S;
+    Bigint *b, *b1, *delta, *mlo = 0, *mhi = 0, *S;
     double d2, ds, eps;
     char *s, *s0;
 #ifdef Honor_FLT_ROUNDS
@@ -3663,7 +3663,6 @@ bump_up:
 
     m2 = b2;
     m5 = b5;
-    mhi = mlo = 0;
     if (leftright) {
         i =
 #ifndef Sudden_Underflow