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

[Philip Withnall <pwithnall src gnome org>]

commit 10d55d188c33ef29cfb32323e0b555a2b0539b4a
Author: Philip Withnall <philip withnall collabora co uk>
Date:   Mon May 19 14:50:41 2014 +0100

    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.
    
    Coverity issue: #1214485
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730378

 addressbook/libedata-book/e-book-sqlite.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/addressbook/libedata-book/e-book-sqlite.c b/addressbook/libedata-book/e-book-sqlite.c
index 5d8dc0c..c28497a 100644
--- a/addressbook/libedata-book/e-book-sqlite.c
+++ b/addressbook/libedata-book/e-book-sqlite.c
@@ -4632,7 +4632,7 @@ query_preflight_check (PreflightContext *context,
                        /* It's really improbable that we ever get 64 fields in the summary
                         * In any case we warn about this in e_book_sqlite_new_full().
                         */
-                       g_warn_if_fail (aux_index < EBSQL_MAX_SUMMARY_FIELDS);
+                       g_warn_if_fail (aux_index >= 0 && aux_index < EBSQL_MAX_SUMMARY_FIELDS);
                        context->aux_mask |= (1 << aux_index);
                        EBSQL_NOTE (
                                PREFLIGHT,