[evolution-data-server] addressbook: Strengthen an assertion to avoid negative bit shifts

[Philip Withnall <pwithnall src gnome org>]

commit 51e9e697fa0cda4291735c2f548dedab14b2dd01
Author: Philip Withnall <philip tecnocode co uk>
Date:   Sat Nov 1 14:10:08 2014 +0000

    addressbook: Strengthen an assertion to avoid negative bit shifts
    
    This should never happen in practice, but it is good to be completely
    explicit in the assertion.
    
    Follow up to commit 10d55d18.
    
    Coverity issue: #1250458
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730378

 addressbook/libedata-book/e-book-sqlite.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/addressbook/libedata-book/e-book-sqlite.c b/addressbook/libedata-book/e-book-sqlite.c
index 905dec7..49df7ee 100644
--- a/addressbook/libedata-book/e-book-sqlite.c
+++ b/addressbook/libedata-book/e-book-sqlite.c
@@ -5576,6 +5576,7 @@ ebsql_generate_autocomplete_query (EBookSqlite *ebsql,
                        continue;
 
                aux_index = summary_field_get_index (ebsql, test->field_id);
+               g_warn_if_fail (aux_index >= 0 && aux_index < EBSQL_MAX_SUMMARY_FIELDS);
                context->aux_mask = (1 << aux_index);
                context->left_join_mask = 0;