Assertion: (../lnk/tmplmatchargs.cc, line 178)

Question

I am using studio 11 for v8 on solaris 9, with the following patches installed:
120760-02 121015-01 121017-01 121019-01 121021-01
When I compile the following code with "CC -c file.cpp", I get:
>> Assertion:   (../lnk/tmplmatchargs.cc, line 178)
    while processing file.cpp at line 19.The code is:
struct K {};
template < class T1 , class T2 , class T3 > class A { } ;
template < class T ,
template < class U , class V , class W >
class X = A >
class B { } ;
template < class T ,
template < class U , class V , class W >
class X >
K & operator >> ( K & in , B < T , X > & P ) {
return in ;
typedef B < float > Z ;
void f ( K & in , Z f ) {
    in >> f;
}I guess it just means that it cannot deal with default values for template template arguments, but it is a violent way to say so.
(I also got an assertion failure this morning in ../lnk/initializer.cc with an other piece of code, I will try to get my hands on it again)

Answer 1

An assertion from the compiler is always a compiler bug. In this case, it looks like an internal failure in dealing with template template parameters.
I have filed bug 6396915 for you.
If you have a contract with Sun Service, you can track progress on fixing this bug, and get a pre-release version of the patch that fixes it.
Otherwise, you can check the Sun Studio patch page from time to time to see whether a patch has been released that fixes the bug. A fix for this problem will not appear for at least two months.