http://llvm.org/bugs/show_bug.cgi?id=8007
Summary: friend function either not instantiated or not
injected
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]
Please compile the attached file, reproduced here too:
###########################
#include <iostream>
template <typename STRUCT_TYPE>
struct Streamer
{
friend std::ostream& operator << (std::ostream& o, const STRUCT_TYPE& f)
{
Streamer s(f);
s(o);
return o;
}
Streamer(const STRUCT_TYPE& s)
: s(s)
{}
const STRUCT_TYPE& s;
void operator () (std::ostream&) const;
};
typedef struct Foo {} Foo;
// this does not help either:
template struct Streamer<Foo>;
template <>
void Streamer<Foo>::operator () (std::ostream& o) const
{
}
int main(void)
{
Foo foo;
std::cout << foo;
}
###########################
I get:
friend-instantiate.cpp:36:15: error: invalid operands to binary expression
('ostream' (aka 'basic_ostream<char>') and 'Foo' (aka 'Foo'))
std::cout << foo;
~~~~~~~~~ ^ ~~~
gcc (v3.4.6) does compile this.
I suppose that the friend operator function is either not instantiated
or not injected into the enclosing scope.
Even explicitly instantiating the template does nor help (as commented in the
code).
Offtopic, but funny, how the error message issues an "aka" with the same name.
I guess this should be suppressed as it can be quite confusing for long (but
identical) names.
--
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
