grep branch, master, updated. v2.21-63-g8a33cde

[Jim Meyering]

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http://git.savannah.gnu.org/cgit/grep.git/commit/?id=8a33cdeba4ba032f3d0efebf230b86971c27e158


commit 8a33cdeba4ba032f3d0efebf230b86971c27e158
Author: Norihiro Tanaka <address@hidden>
Date:   Tue Aug 11 00:37:00 2015 +0900

    grep: avoid use of uninitialized variable
    
    EGexecute would use "backref" uninitialized.
    While that could have no bearing on correctness, it could
    impact performance, via an unnecessary use of regexp.
    * src/dfasearch.c (EGexecute): Initialize backref.
    Reported as http://debbugs.gnu.org/21273
    Introduced by commit v2.21-55-gea0ebaa.

diff --git a/src/dfasearch.c b/src/dfasearch.c
index 8b8af06..de51321 100644
--- a/src/dfasearch.c
+++ b/src/dfasearch.c
@@ -207,7 +207,6 @@ EGexecute (char const *buf, size_t size, size_t *match_size,
 {
   char const *buflim, *beg, *end, *ptr, *match, *best_match, *mb_start;
   char eol = eolbyte;
-  int backref;
   regoff_t start;
   size_t len, best_len;
   struct kwsmatch kwsm;
@@ -227,6 +226,7 @@ EGexecute (char const *buf, size_t size, size_t *match_size,
           char const *next_beg, *dfa_beg = beg;
           size_t count = 0;
           bool exact_kwset_match = false;
+          int backref = 0;
 
           /* Try matching with KWset, if it's defined.  */
           if (kwset)

-----------------------------------------------------------------------

Summary of changes:
 src/dfasearch.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)


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