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| author | Ken Matsui <kmatsui@gcc.gnu.org> | 2023-12-06 21:33:11 -0800 |
|---|---|---|
| committer | Jason Merrill <jason@redhat.com> | 2023-12-10 13:11:23 -0500 |
| commit | 5bca9af579a06bbf7160613f948ecf2092299437 (patch) | |
| tree | d7ba523551e6af7a45b724b21655e6fa0861906e /gcc/cp/constraint.cc | |
| parent | f4007cb78e428c7a82b85b7c1c4104946b98c933 (diff) | |
| download | gcc-5bca9af579a06bbf7160613f948ecf2092299437.zip gcc-5bca9af579a06bbf7160613f948ecf2092299437.tar.gz gcc-5bca9af579a06bbf7160613f948ecf2092299437.tar.bz2 | |
c++: Implement __is_reference built-in trait
This patch implements built-in trait for std::is_reference.
gcc/cp/ChangeLog:
* cp-trait.def: Define __is_reference.
* constraint.cc (diagnose_trait_expr): Handle CPTK_IS_REFERENCE.
* semantics.cc (trait_expr_value): Likewise.
(finish_trait_expr): Likewise.
gcc/testsuite/ChangeLog:
* g++.dg/ext/has-builtin-1.C: Test existence of __is_reference.
* g++.dg/ext/is_reference.C: New test.
Signed-off-by: Ken Matsui <kmatsui@gcc.gnu.org>
Diffstat (limited to 'gcc/cp/constraint.cc')
| -rw-r--r-- | gcc/cp/constraint.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/cp/constraint.cc b/gcc/cp/constraint.cc index 204b998..aa42017 100644 --- a/gcc/cp/constraint.cc +++ b/gcc/cp/constraint.cc @@ -3789,6 +3789,9 @@ diagnose_trait_expr (tree expr, tree args) case CPTK_IS_POLYMORPHIC: inform (loc, " %qT is not a polymorphic type", t1); break; + case CPTK_IS_REFERENCE: + inform (loc, " %qT is not a reference", t1); + break; case CPTK_IS_SAME: inform (loc, " %qT is not the same as %qT", t1, t2); break; |