http://llvm.org/bugs/show_bug.cgi?id=15328
Bug ID: 15328
Summary: Compiler warns about inaccessible copy constructor
when binding a reference to a temporary
Product: clang
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: enhancement
Priority: P
Component: C++
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
Binding a reference to temporary doesn't require a copy constructor at all:
$ clang --version && cat main.cpp && clang -std=c++98 -Wall main.cpp
clang version 3.3 (trunk 175738)
Target: i386-pc-linux-gnu
Thread model: posix
int main() {
struct A {
static void test(const A &) {}
A() {}
private: A(const A &) {}
};
A::test(A());
return 0;
}
main.cpp:10:11: warning: C++98 requires an accessible copy constructor for
class
'A' when binding a reference to a temporary; was private
[-Wbind-to-temporary-copy]
A::test(A());
^
main.cpp:7:14: note: declared private here
private: A(const A &) {}
^
1 warning generated.
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