Your message dated Mon, 13 Jul 2026 11:57:03 +0200 with message-id <[email protected]> and subject line fixed in 15.3.0 has caused the Debian Bug report #1120951, regarding g++-15: Compilation error about class not being a non-union class type for valid C++ code to be marked as done.
This means that you claim that the problem has been dealt with. If this is not the case it is now your responsibility to reopen the Bug report if necessary, and/or fix the problem forthwith. (NB: If you are a system administrator and have no idea what this message is talking about, this may indicate a serious mail system misconfiguration somewhere. Please contact [email protected] immediately.) -- 1120951: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1120951 Debian Bug Tracking System Contact [email protected] with problems
--- Begin Message ---Package: g++-15 Version: 15.2.0-8 Severity: important Tags: upstream Dear Maintainer, the recently uploaded version of g++ caused compilation errors in some packages during rebuils, e.g. opm-simulators [1]. This simple C++ program fails to compile: #include <set> template <class S> class A { typedef S VertexSet; public: typename VertexSet::size_type size(); private: VertexSet vertices_; }; template <class S> inline typename A<S>::VertexSet::size_type A<S>::size() { return vertices_.size(); } int main() { A<std::set<int>> a; return a.size(); } with the error: <source>:16:55: error: 'class A<S>::VertexSet' resolves to 'A<S>::VertexSet', which is not a non-union class type [-Wtemplate-body] 16 | inline typename A<S>::VertexSet::size_type A<S>::size() | ^ Compiler returned: 1 See also [2]. The expected outcome would be that the program compiles without any errors. One can work around this problem by defining a typename size_type for VertexSet::size_type and using that instead. A similar fix has been applied to dune-istl in [3] Best, Markus [1] https://buildd.debian.org/status/fetch.php?pkg=opm- simulators&arch=loong64&ver=2025.10%2Bds-1%2Bb1&stamp=1763168796&raw=0 [2] https://godbolt.org/z/xodooafea [3] https://salsa.debian.org/science-team/dune- istl/-/commit/51fedd3623c511f79ef5c2c6321fb62b9c08b5cf -- System Information: Debian Release: 12.12 APT prefers oldstable-updates APT policy: (500, 'oldstable-updates'), (500, 'oldstable-security'), (500, 'oldstable') Architecture: amd64 (x86_64) Kernel: Linux 6.1.0-40-amd64 (SMP w/64 CPU threads; PREEMPT) Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled
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--- Begin Message ---Version: 15.3.0-1
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