[LLVMbugs] [Bug 22307] New: Unassociated template may multiply define friend function

bugzilla-daemon at llvm.org bugzilla-daemon at llvm.org
Fri Jan 23 02:34:24 PST 2015


            Bug ID: 22307
           Summary: Unassociated template may multiply define friend
           Product: clang
           Version: 3.5
          Hardware: PC
                OS: All
            Status: NEW
          Severity: normal
          Priority: P
         Component: C++
          Assignee: unassignedclangbugs at nondot.org
          Reporter: david_work at me.com
                CC: dgregor at apple.com, llvmbugs at cs.uiuc.edu
    Classification: Unclassified

Multiple definition of a function isn't diagnosed when all definitions are
specializations of the same template.

/* struct t isn't necessary to reproduce the bug,
   but it does help generate a neat segfault. */
struct t {
    friend int leak( t );

template< typename v >
struct m {
    friend int leak( t ) { return sizeof (v); }

template struct m< char >;
template struct m< short >;

int main() {
    leak( t() );

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