http://llvm.org/bugs/show_bug.cgi?id=8035
Summary: Injected friend redefinition
Product: clang
Version: trunk
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: P
Component: C++
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
this is a stripped-down example from
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38392
which fails to compile on clang.
ga...@google8:~/llvm-build$ cat PR.cpp
#include <cstdio>
void Function();
int main(int argc, char* argv[])
{
Function();
}
template <typename T>
struct Test
{
friend void Function() { printf("Function()"); getchar(); }
};
template class Test<int>;
ga...@google8:~/llvm-build$ /home/gabor/llvm-build/Debug+Asserts/bin/clang
PR.cpp
PR.cpp:13:17: error: redefinition of 'Function'
friend void Function() { printf("Function()"); getchar(); }
^
PR.cpp:16:16: note: in instantiation of template class 'Test<int>' requested
here
template class Test<int>;
^
PR.cpp:13:17: note: previous definition is here
friend void Function() { printf("Function()"); getchar(); }
^
1 error generated.
The error comes from
1175 // Check for a function body.
1176 const FunctionDecl *Definition = 0;
1177 if (Function->hasBody(Definition) &&
1178 Definition->getTemplateSpecializationKind() ==
TSK_Undeclared) {
1179 SemaRef.Diag(Function->getLocation(), diag::err_redefinition)
1180 << Function->getDeclName();
1181 SemaRef.Diag(Definition->getLocation(),
diag::note_previous_definition);
1182 Function->setInvalidDecl();
1183 }
in clang/lib/Sema/SemaTemplateInstantiateDecl.cpp
(I verified that the bug was present in r112000, before I started with fiddling
in clang.)
Modern gccs do compile this, but fail to link (see URL). gcc v4.6 should work.
--
Configure bugmail: http://llvm.org/bugs/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are on the CC list for the bug.
_______________________________________________
LLVMbugs mailing list
[email protected]
http://lists.cs.uiuc.edu/mailman/listinfo/llvmbugs
