| Summary: | UIPMC_Transport.cpp violates C++ ODR | ||
|---|---|---|---|
| Product: | TAO | Reporter: | J.T. Conklin <jtc> |
| Component: | PortableGroup | Assignee: | DOC Center Support List (internal) <tao-support> |
| Status: | NEW --- | ||
| Severity: | normal | CC: | gbr |
| Priority: | P3 | ||
| Version: | 1.6.1 | ||
| Hardware: | x86 | ||
| OS: | Solaris | ||
| Bug Depends on: | |||
| Bug Blocks: | 3160 | ||
Sun has reorganized their documentation, and the link in Comment #1 no longer works. Rather than chase links, I've excerpted the relevant section: 6.7.6 Referencing Static Variables and Static Functions Within a template definition, the compiler does not support referencing an object or function that is declared static at global scope or in a namespace. If multiple instances are generated, the One-Definition Rule (C++ standard section 3.2) is violated, because each instance refers to a different object. The usual failure indication is missing symbols at link time. If you want a single object to be shared by all template instantiations, then make the object a nonstatic member of a named namespace. If you want a different object for each instantiation of a template class, then make the object a static member of the template class. If you want a different object for each instantiation of a template function, then make the object local to the function. |
With a platform_macros.GNU like: include ${ACE_ROOT}/include/makeinclude/platform_sunos5_sunc++.GNU And with a config.h like: #include "ace/config-sunos5.10.h" #undef ACE_TEMPLATES_REQUIRE_SOURCE Everything that links against the PortableGroup library fails to build. According to: http://docs.sun.com/app/docs/doc/819-5267/6n7c46dq3?a=view (scroll down to section 6.7.6) this is because the global static variable miop_magic[] violates the C++ One Definition Rule. To fix, miop_magic needs to be made to be made a template class static member variable, or a global defined in another file.