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* [gcc r13-5313] c++: vector of class with bool ctor [PR108195]
@ 2023-01-23 21:13 Jason Merrill
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From: Jason Merrill @ 2023-01-23 21:13 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:72e46b3c7ad5e3d2c69868a510c00707c356106a
commit r13-5313-g72e46b3c7ad5e3d2c69868a510c00707c356106a
Author: Jason Merrill <jason@redhat.com>
Date: Mon Jan 23 15:03:47 2023 -0500
c++: vector of class with bool ctor [PR108195]
The transformation done by r13-4564 to use the iterator constructor instead
of the initializer-list constructor breaks if the iterator pointers are
themselves treated as elements of an initializer-list, so check for that.
PR c++/108195
gcc/cp/ChangeLog:
* call.cc (build_user_type_conversion_1): Check whether the
iterators also find a list ctor.
gcc/testsuite/ChangeLog:
* g++.dg/cpp0x/initlist-vect2.C: New test.
Diff:
---
gcc/cp/call.cc | 2 +-
gcc/testsuite/g++.dg/cpp0x/initlist-vect2.C | 16 ++++++++++++++++
2 files changed, 17 insertions(+), 1 deletion(-)
diff --git a/gcc/cp/call.cc b/gcc/cp/call.cc
index a7de0e8e9a6..5715a7cd1de 100644
--- a/gcc/cp/call.cc
+++ b/gcc/cp/call.cc
@@ -4581,7 +4581,7 @@ build_user_type_conversion_1 (tree totype, tree expr, int flags,
if (tree iters = maybe_init_list_as_range (cand->fn, expr))
if (z_candidate *cand2
= build_user_type_conversion_1 (totype, iters, flags, tf_none))
- if (cand2->viable == 1)
+ if (cand2->viable == 1 && !is_list_ctor (cand2->fn))
{
cand = cand2;
expr = iters;
diff --git a/gcc/testsuite/g++.dg/cpp0x/initlist-vect2.C b/gcc/testsuite/g++.dg/cpp0x/initlist-vect2.C
new file mode 100644
index 00000000000..eec7d340fd1
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp0x/initlist-vect2.C
@@ -0,0 +1,16 @@
+// PR c++/108195
+// { dg-do run { target c++11 } }
+
+#include <vector>
+
+struct S
+{
+ S(bool) {}
+};
+
+int main()
+{
+ std::vector<S> v = { true, false, true };
+ if (v.size() != 3)
+ __builtin_abort ();
+}
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