[Bug c++/69487] Unexpected VLA initialization of char[] from ""

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69487

--- Comment #5 from Jason Merrill <jason at gcc dot gnu.org> ---
Author: jason
Date: Mon Apr  3 21:15:36 2017
New Revision: 246662

URL: https://gcc.gnu.org/viewcvs?rev=246662&root=gcc&view=rev
Log:
        PR sanitizer/79993 - ICE with VLA initialization from string

        PR c++/69487 - wrong VLA initialization from string
        * init.c (finish_length_check): Split out from build_vec_init.
        (build_vec_init): Handle STRING_CST.
        * typeck2.c (split_nonconstant_init): Handle STRING_CST.
        (digest_init_r): Don't give a STRING_CST VLA type.

Added:
    trunk/gcc/testsuite/g++.dg/asan/pr78201.C
    trunk/gcc/testsuite/g++.dg/ext/vla17.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/cp/typeck2.c