Hi,
I suppose my fix is causing the above linker error.
I am attaching the issues and the solutions.
There are 2 compilation issues in templates
===========================================
1 - Explicit instantiation
==========================
Original Code
=============
namespace test
{
namespace CMC
{
TYPE_CLASS_MODIFIER template class testLIB_API
test::Pair<test::MapIterator<const test::tstring, long>, bool>;
}
}
Error : error: explicit instantiation of 'class
test::Pair<test::MapIterator<const test::String<wchar_t>, long int>, bool>'
in namespace 'test::CMC' (which does not enclose namespace 'test')
Modified Code
=============
namespace test
{
namespace CMC
{
}
TYPE_CLASS_MODIFIER template class testLIB_API
test::Pair<test::MapIterator<const test::tstring, long>, bool>;
}
2 - too few template parameter lists
=====================================
Original Code
==============
int mlyy::basic_scanner<SCAN_CLASS::token_type,
SCAN_CLASS::location_type,
SCAN_CLASS::scanner_id,
SCAN_CLASS::lock_type>::start_condition() const
{
return 1;
}
Error : 2 - too few template parameter lists
Modified Code
=============
template<typename Token, typename Location,
int id, typename Lock>
int
mlyy::basic_scanner<Token, Location, id, Lock>::start_condition() const
{
return 1;
}
Please comment on this.
Note : This compilation issue is not found with GCC 3.4.3. This is only with
GCC 4.1.2
-ruks
John (Eljay) Love-Jensen wrote:
>
> Hi ruks,
>
> Are you using explicit template instantiation?
>
> If you look at ConfigTest.cpp line 638, is the body for
> ylmm::basic_parser<action::expression, ylmm::basic_location, 0,
> ylmm::basic_lock>:arse(void*) in a template header file (.h) being
> including by ConfigTest.cpp (or in ConfigTest.cpp itself)?
>
> If the body is not in the template header file (and not in ConfigTest.cpp
> itself), I recommend putting the body of the arse() method into the
> appropriate template header file and use vague linkage instead of explicit
> template instantiation.
>
> If you really prefer explicit template instantiation, I recommend checking
> to see why the .o which should have the instantiation of the arse() method
> does not have it instantiated.
>
> Likewise for the other link-time missing templates methods and/or
> functions.
>
> HTH,
> --Eljay
>
>
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