diff options
Diffstat (limited to 'gcc/cp/semantics.c')
| -rw-r--r-- | gcc/cp/semantics.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/gcc/cp/semantics.c b/gcc/cp/semantics.c index 576d931..8766d6f 100644 --- a/gcc/cp/semantics.c +++ b/gcc/cp/semantics.c @@ -1625,6 +1625,25 @@ finish_template_template_parm (aggr, identifier) return finish_template_type_parm (aggr, tmpl); } +/* ARGUMENT is the default-argument value for a template template + parameter. If ARGUMENT is invalid, issue error messages and return + the ERROR_MARK_NODE. Otherwise, ARGUMENT itself is returned. */ + +tree +check_template_template_default_arg (tree argument) +{ + if (TREE_CODE (argument) != TEMPLATE_DECL + && TREE_CODE (argument) != TEMPLATE_TEMPLATE_PARM + && TREE_CODE (argument) != TYPE_DECL + && TREE_CODE (argument) != UNBOUND_CLASS_TEMPLATE) + { + error ("invalid default template argument"); + return error_mark_node; + } + + return argument; +} + /* Finish a parameter list, indicated by PARMS. If ELLIPSIS is non-zero, the parameter list was terminated by a `...'. */ |