[gcc r14-11488] libstdc++: Add testcases for resolved bug [PR101527]

[Jonathan Wakely via Gcc-cvs]

https://gcc.gnu.org/g:da6cea6625be011eeda958b096cf35573d2ab7bb

commit r14-11488-gda6cea6625be011eeda958b096cf35573d2ab7bb
Author: Jonathan Wakely <jwak...@redhat.com>
Date:   Mon Mar 24 21:36:16 2025 +0000

    libstdc++: Add testcases for resolved bug [PR101527]
    
    These tests were fixed by a front-end change r13-465-g4df735e01e3199 so
    this just adds them to the testsuite to be sure we don't regress.
    
    libstdc++-v3/ChangeLog:
    
            PR libstdc++/101527
            * testsuite/24_iterators/common_iterator/101527.cc: New test.
            * testsuite/24_iterators/counted_iterator/101527.cc: New test.
    
    (cherry picked from commit f7c0b0fc4fdeaf034dc38356830625f7280d325d)

Diff:
---
 .../testsuite/24_iterators/common_iterator/101527.cc       | 14 ++++++++++++++
 .../testsuite/24_iterators/counted_iterator/101527.cc      | 14 ++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/libstdc++-v3/testsuite/24_iterators/common_iterator/101527.cc 
b/libstdc++-v3/testsuite/24_iterators/common_iterator/101527.cc
new file mode 100644
index 000000000000..0a2a5e8dfcca
--- /dev/null
+++ b/libstdc++-v3/testsuite/24_iterators/common_iterator/101527.cc
@@ -0,0 +1,14 @@
+// { dg-do compile { target c++20 } }
+
+// PR libstdc++/101527
+// implementation of std::common_iterator and std::counted_iterator's
+// operator== seems to be wrong
+
+#include <iterator>
+
+bool test_pr101527()
+{
+  std::common_iterator<int*, std::unreachable_sentinel_t> it1;
+  std::common_iterator<const int*, std::unreachable_sentinel_t> it2;
+  return it1 == it2;
+}
diff --git a/libstdc++-v3/testsuite/24_iterators/counted_iterator/101527.cc 
b/libstdc++-v3/testsuite/24_iterators/counted_iterator/101527.cc
new file mode 100644
index 000000000000..51c6e99cd77c
--- /dev/null
+++ b/libstdc++-v3/testsuite/24_iterators/counted_iterator/101527.cc
@@ -0,0 +1,14 @@
+// { dg-do compile { target c++20 } }
+
+// PR libstdc++/101527
+// implementation of std::common_iterator and std::counted_iterator's
+// operator== seems to be wrong
+
+#include <iterator>
+
+bool test_pr101527()
+{
+  std::counted_iterator<int*> it1;
+  std::counted_iterator<const int*> it2;
+  return it1 == it2;
+}