[Bug c++/53173] PROD02

[marc.glisse at normalesup dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53173

--- Comment #1 from Marc Glisse <marc.glisse at normalesup dot org> 2012-04-30 20:02:59 UTC ---
Uh, where are you reporting a bug in gcc?

(In reply to comment #0)
> I am trying to upgrade (GCC) 4.4.0 to (GCC) 4.6.2.  I see bunch of incompatible
> error from code which works with (GCC) 4.4.0 but NOT with (GCC) 4.6.2. 

Yes, g++ becomes better at detecting illegal code.

> 1. error: ‘constexpr’ needed for in-class initialization of static data member

Are you using -std=c++0x? Why?

> 2. error: no matching function for call to ‘std::pair<const long unsigned int,
> boost::shared_ptr<const

Obviously missing most of the message.

> 3. /usr/include/sigc++-2.0/sigc++/signal.h:38:11: error: 'ptrdiff_t' does not
> name a typeFix: #include <cstddef> 

actually stddef.h if you want ptrdiff_t and not just std::ptrdiff_t (unless
there is a using namespace std, as 6. makes me fear)

> 4. error: no matching function for call to ‘make_pair(std::string&,
> std::string&)’

#include <utility>

> 5. error: declaration of ‘~typename

Missing most of the message again

> 6. error: call of overloaded ‘isnan(double&)’ is ambiguous

PR48891 maybe?

> I  do refer https://wiki.edubuntu.org/GCC4.6 to fix some of the issue. I
> rebuilt boost_1_47_0,  SQLAPI-3.7.35, etc. with (GCC) 4.6.2 as well to remove
> incompatibilty between these.

Gcc release notes often also contain relevant information, too.

> I am suspicious if some of the issue is already fixed in (GCC) 4.6.3 (already
> released).

What do you mean, fixed? The bugs are in your code.

> Please let me know if we can use (GCC) 4.6.3 instead of (GCC) 4.6.2.

Sure, more bugs fixed.