Thanks a lot.
I also found a warning message about this if I used the `bridge pattern' (aka
pimpl idiom) in my code.
For example, here are 2 files:
==
// interface.hxx
#include
struct TestImpl;
class Test {
public:
Test();
~Test();
void foo();
private:
std:
Ling-hua Tseng wrote:
> If I compile this file with g++ 4.2 by the following command:
> g++ -c test.cxx
> and then use this command to check symbol:
> nm test.o
> I cannot find the global varible `test' in symbol table:
This was an intentional change as part of the overhaul of C++ visibility
Here is the example program:
==
// test.cxx
#include
#include
namespace {
template
struct transformValue {
size_t operator()(const T &x) const
{
return x + 10;
}
};
}
extern std::map > *test;
std::map > *test;
==
If I compile this file with g++ 4.2 by the f
