g++-2.95.2/DEC OSF fails to implicitly instantiate explicitly initialized static POD data of a class template

[Martin Sebor <sebor at roguewave dot com>]

Hi,

g++ 2.95.2 doesn't implicitly instantiate S<char>::b below on DEC OSF1
5.0. Removing the explicit initializer or explicitly instantiating the
template works. Could this have something to do with the bug (that g++
warns about on DEC) that causes multiple copies of explicitly
initialized static local data in inline code to be emitted?

Thanks
Martin


$ cat test.cpp

template <class T>
struct S
{
    static T a;
    static T b;
};

template <class T>
T S<T>::a;        // <-- NOT initialized

template <class T>
T S<T>::b = 0;    // <-- explicitly initialized

int main ()
{
    return S<char>::a + S<char>::b;
}


$ g++ -v test.cpp
Reading specs from
/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/specs
gcc version 2.95.2 19991024 (release)

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/cpp
-lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus
-Dunix -D__osf__ -D_LONGLONG -DSYSTYPE_BSD -D_SYSTYPE_BSD -D__unix__
-D__osf__ -D_LONGLONG -D__SYSTYPE_BSD__ -D_SYSTYPE_BSD -D__unix
-D__SYSTYPE_BSD -Asystem(unix) -Asystem(xpg4) -D__EXCEPTIONS
-D__LANGUAGE_C__ -D__LANGUAGE_C -DLANGUAGE_C -Acpu(alpha)
-Amachine(alpha) -D__alpha -D__alpha__ -D__alpha_ev5__ -Acpu(ev5)
-D__alpha_bwx__ -Acpu(bwx) test.cpp /tmp/ccp72nrk.ii
GNU CPP version 2.95.2 19991024 (release)
#include "..." search starts here:
#include <...> search starts here:

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/../../../../include/g++-3
 /usr/local/include

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/../../../../alphaev56-dec-osf4.0d/include

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/include
 /usr/include
End of search list.
The following default directories have been omitted from the search
path:
End of omitted list.

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/cc1plus
/tmp/ccp72nrk.ii -quiet -dumpbase test.cc -version -o /tmp/ccGxcBFv.s
GNU C++ version 2.95.2 19991024 (release) (alphaev56-dec-osf4.0d)
compiled by GNU C version 2.95.2 19991024 (release).
 as -g -nocpp -O0 -o /tmp/ccfVdVVH.o /tmp/ccGxcBFv.s

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/mips-tfile
-v -o /tmp/ccfVdVVH.o /tmp/ccGxcBFv.s
mips-tfile version 2.95.2 19991024 (release)

/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2/collect2
-G 8 -O1 -call_shared /usr/lib/cmplrs/cc/crt0.o
-L/package/1/V5.0/compilers/g++/2.95.2/lib/gcc-lib/alphaev56-dec-osf4.0d/2.95.2
-L/usr/lib/cmplrs/cc -L/package/1/V5.0/compilers/g++/2.95.2/lib
/tmp/ccfVdVVH.o -lstdc++ -lm -lgcc -lc -lgcc
/usr/bin/ld:
Unresolved:
S<char>::b
collect2: ld returned 1 exit status