In gcc/c-family/:

In gcc/c-family/:
2010-11-22  Nicola Pero  <nicola.pero@meta-innovation.com>

        PR objc/34033
        * c-lex.c (lex_string): Check that each string in an Objective-C
        string concat sequence starts with either one or zero '@', and
        that there are no spurious '@' signs at the end.

In gcc/testsuite/:
2010-11-22  Nicola Pero  <nicola.pero@meta-innovation.com>

        PR objc/34033
        * objc.dg/strings-1.m: New.
        * objc.dg/strings-2.m: New.
        * obj-c++.dg/strings-1.mm: New.
        * obj-c++.dg/strings-2.mm: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@167048 138bc75d-0d04-0410-961f-82ee72b054a4