https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125546
Bug ID: 125546
Summary: GCC accepts a variable template definition that
initializes int from nullptr
Product: gcc
Version: 15.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: qurong at ios dot ac.cn
Target Milestone: ---
GCC 15.2.0 accepts the following C++20 program, while Clang 22 rejects it:
template<typename T>
int abc_template = nullptr;
GCC:gcc15 15.2.0
-std=c++20: accepts
-std=c++20 -pedantic-errors: accepts
Clang: clang++-22 22.0.0
-std=c++20: rejects
-std=c++20 -pedantic-errors: rejects
Clang diagnostic:
error: cannot initialize a variable of type 'int' with an rvalue of type
'std::nullptr_t'
