nobu	2017-03-16 15:51:24 +0900 (Thu, 16 Mar 2017)

  New Revision: 57991

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=57991

  Log:
    rational.c: initialize n
    
    * rational.c (read_num): `n` was used uninitialized when the
      string started with a period.

  Modified files:
    trunk/rational.c
Index: rational.c
===================================================================
--- rational.c	(revision 57990)
+++ rational.c	(revision 57991)
@@ -2280,7 +2280,7 @@ islettere(int c) https://github.com/ruby/ruby/blob/trunk/rational.c#L2280
 static int
 read_num(const char **s, const char *const end, VALUE *num, VALUE *div)
 {
-    VALUE fp = ONE, exp, fn = ZERO, n;
+    VALUE fp = ONE, exp, fn = ZERO, n = ZERO;
     int expsign = 0, ok = 0;
     char *e;
 

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