diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/cp/typeck.c | 2 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/cpp2a/concepts-pr78173.C | 9 |
2 files changed, 10 insertions, 1 deletions
diff --git a/gcc/cp/typeck.c b/gcc/cp/typeck.c index afbb8ef..a650581 100644 --- a/gcc/cp/typeck.c +++ b/gcc/cp/typeck.c @@ -5984,7 +5984,7 @@ pointer_diff (location_t loc, tree op0, tree op1, tree ptrtype, tree restype = ptrdiff_type_node; tree target_type = TREE_TYPE (ptrtype); - if (!complete_type_or_else (target_type, NULL_TREE)) + if (!complete_type_or_maybe_complain (target_type, NULL_TREE, complain)) return error_mark_node; if (VOID_TYPE_P (target_type)) diff --git a/gcc/testsuite/g++.dg/cpp2a/concepts-pr78173.C b/gcc/testsuite/g++.dg/cpp2a/concepts-pr78173.C new file mode 100644 index 0000000..50f561a --- /dev/null +++ b/gcc/testsuite/g++.dg/cpp2a/concepts-pr78173.C @@ -0,0 +1,9 @@ +// PR c++/78173 +// { dg-do compile { target c++20 } } + +template <class T> +concept CanDifference = requires(T x, T y) { + x - y; +}; + +static_assert(!CanDifference<void*>); |