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authorJonathan Wakely <jwakely@redhat.com>2024-08-27 13:30:42 +0100
committerJonathan Wakely <redi@gcc.gnu.org>2024-08-27 14:20:13 +0100
commit75ef21665cb924265b818b08babbc7ec3108c876 (patch)
treefc25c9f69210003d6f533fa5696a63d83fef08eb /libstdc++-v3/python
parent470a27859d8a47a99f389f1dc6edb82c08b16e21 (diff)
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libstdc++: Do not use std::vector<bool>::reference default ctor [PR115098]
This default constructor was made private by r15-3124-gb25b101bc38000 so the pretty printer tests need a fix to stop using it. There's no conforming way to get a default-constructed 'reference' now, e.g. trying to access an element of a default-constructed std::vector<bool> will trigger an assertion. Remove the tests, but leave a comment in the printer code about handling it. libstdc++-v3/ChangeLog: PR libstdc++/115098 * python/libstdcxx/v6/printers.py (StdBitReferencePrinter): Add comment. * testsuite/libstdc++-prettyprinters/simple.cc: Do not default construct std::vector<bool>::reference. * testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
Diffstat (limited to 'libstdc++-v3/python')
-rw-r--r--libstdc++-v3/python/libstdcxx/v6/printers.py3
1 files changed, 3 insertions, 0 deletions
diff --git a/libstdc++-v3/python/libstdcxx/v6/printers.py b/libstdc++-v3/python/libstdcxx/v6/printers.py
index a6c2ed4..9210493 100644
--- a/libstdc++-v3/python/libstdcxx/v6/printers.py
+++ b/libstdc++-v3/python/libstdcxx/v6/printers.py
@@ -613,6 +613,9 @@ class StdBitReferencePrinter(printer_base):
def to_string(self):
if not self._val['_M_p']:
+ # PR libstdc++/115098 removed the reference default constructor
+ # that this case relates to. New code should never need this,
+ # but we still handle it for compatibility with old binaries.
return 'invalid std::vector<bool>::reference'
return bool(self._val['_M_p'].dereference() & (self._val['_M_mask']))