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* decl.c (cp_finish_decl): Never throw for VLA bound == 0.

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From-SVN: r204218
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Jason Merrill 2013-10-30 13:30:10 -04:00 committed by Jason Merrill
parent 1652c6dada
commit 3e4403a4c4
2 changed files with 5 additions and 5 deletions
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4
gcc/cp/ChangeLog
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@ -1,3 +1,7 @@
2013-10-30 Jason Merrill <jason@redhat.com>
* decl.c (cp_finish_decl): Never throw for VLA bound == 0.
2013-10-29 David Malcolm <dmalcolm@redhat.com>
Patch autogenerated by refactor_symtab.py from

6
gcc/cp/decl.c
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@ -6404,11 +6404,7 @@ cp_finish_decl (tree decl, tree init, bool init_const_expr_p,
/* If the VLA bound is larger than half the address space, or less
than zero, throw std::bad_array_length. */
tree max = convert (ssizetype, TYPE_MAX_VALUE (TYPE_DOMAIN (type)));
/* C++1y says we should throw for length <= 0, but we have
historically supported zero-length arrays. Let's treat that as an
extension to be disabled by -std=c++NN. */
int lower = flag_iso ? 0 : -1;
tree comp = build2 (LT_EXPR, boolean_type_node, max, ssize_int (lower));
tree comp = build2 (LT_EXPR, boolean_type_node, max, ssize_int (-1));
comp = build3 (COND_EXPR, void_type_node, comp,
throw_bad_array_length (), void_zero_node);
finish_expr_stmt (comp);