Bug report: Internal Error with member function pointer

[Justus_Calvin]

I am getting an internal error when trying to compile the test case below. It compiles with no problem with Apple GCC 4.2.1, GNU GCC 4.5.2, clang++ 2.8, and Intel 11.1 091.

I am trying to pass a member function pointer (&C2::func2) to a template member template function (C2::Tfunc), where the template function argument for the member-function-pointer type is a template argument. This fails if the member function pointer is for a function that has a default argument and the class that contains the member function is also a template.

class C1 shows that this works just fine when the class is not a template class. class C2 shows that it works for a function where the argument does not have a default value, but does fail when the function has a default argument.

Compiler version: 2011.1.122 (12.0.0)

OS: Mac OS X 10.6.6

Test case:

#include

#include

class C1 {

public:

int func1(int i) {

return i;

}

int func2(int i = int()) {

return i;

}

template

A Tfunc(F f, A a) {

return a;

}

int test() {

int i = int();

int j = this->Tfunc(&C1::func1, i); // OK

int k = this->Tfunc(&C1::func2, j); // OK

return k;

}

};

template

class C2 {

public:

X func1(X i) {

return i;

}

X func2(X i = X()) {

return i;

}

template

A Tfunc(F f, A a) {

return a;

}

X test() {

X i = X();

X j = this->Tfunc(&C2::func1, i); // OK without default argument value

X k = this->Tfunc(&C2::func2, j); // Error: Template class with function

// pointer to a function with default value

return k;

}

};

int main(void) {

C1 c1;

c1.test();

C2 c2;

c2.test();

return EXIT_SUCCESS;

}

Compiler output:

/opt/intel/bin/icpc -O2 -g -Wall -fmessage-length=0 -c -o test.o test.cpp

test.cpp(54): internal error: assertion failed: instantiate_default_arguments_of_template_matching: template not found (shared/edgcpfe/overload.c, line 5225)

X k = this->Tfunc(&C2::func2, j); // Error: Template class with function

^

compilation aborted for test.cpp (code 4)

[Om_S_Intel]

I have reproduced the issue. I have submitted a report to Intel compiler development team on this. I will update this thread when I have more information on this.

Om Sachan
Intel compiler support

[Om_S_Intel]

The issue has been fixed in Intel Composer XE update 3. The compiler is available for download from https://registrationcenter.intel.com/.