diff options
Diffstat (limited to 'external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1')
| -rw-r--r-- | external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1 | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1 b/external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1 new file mode 100644 index 000000000000..42c677f7e5ad --- /dev/null +++ b/external/firebird/0001-Make-comparison-operator-member-functions-const.patch.1 @@ -0,0 +1,49 @@ +From 15390d75ee6ca429dbbe15ea04214df8a30fbd48 Mon Sep 17 00:00:00 2001 +From: Stephan Bergmann <sbergman@redhat.com> +Date: Mon, 21 Oct 2019 17:54:18 +0200 +Subject: [PATCH] Make comparison operator member functions const + +...which avoids overload resolution ambiguities in C++20, when a synthesized +candidate of operator == for a reversed-argument rewrite conflicts with the +actual operator ==, due to the asymmetric const-ness of the implicit object +parameter and the RHS parameter. (As observed with recent Clang 10 trunk with +-std=c++2a when building firebird as part of LibreOffice: + +> workdir/UnpackedTarball/firebird/src/jrd/inf.cpp:1139:62: error: use of overloaded operator '!=' is ambiguous (with operand types 'RuntimeStatistics::Iterator' and 'Jrd::RuntimeStatistics::Iterator') +> for (RuntimeStatistics::Iterator iter = stats.begin(); iter != stats.end(); ++iter) +> ~~~~ ^ ~~~~~~~~~~~ +> workdir/UnpackedTarball/firebird/src/jrd/../dsql/../jrd/RuntimeStatistics.h:283:8: note: candidate function +> bool operator!=(const Iterator& other) +> ^ +> workdir/UnpackedTarball/firebird/src/jrd/../dsql/../jrd/RuntimeStatistics.h:278:8: note: candidate function +> bool operator==(const Iterator& other) +> ^ +> workdir/UnpackedTarball/firebird/src/jrd/../dsql/../jrd/RuntimeStatistics.h:278:8: note: candidate function (with reversed parameter order) + +) +--- + src/jrd/RuntimeStatistics.h | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +diff --git a/src/jrd/RuntimeStatistics.h b/src/jrd/RuntimeStatistics.h +index 74a03de2ad..fab286ad1a 100644 +--- a/src/jrd/RuntimeStatistics.h ++++ b/src/jrd/RuntimeStatistics.h +@@ -290,12 +290,12 @@ public: + {} + + public: +- bool operator==(const Iterator& other) ++ bool operator==(const Iterator& other) const + { + return (m_counts == other.m_counts); + } + +- bool operator!=(const Iterator& other) ++ bool operator!=(const Iterator& other) const + { + return (m_counts != other.m_counts); + } +-- +2.21.0 + |