g++-4.8.4, Ubuntu 14.04, internal compiler error: in unify, at cp/pt.c

[emiddell]

Hi,
I' running Ubuntu 14.04.3 LTS and have the package g++4:4.8.2-1ubuntu6 installed.

When trying to compile the following snippet I get an internal compiler error.

---

#include <string>
#include <iostream>

template <typename ... Args>
std::string build_string(std::string fmt, std::initializer_list<Args...> args) {
    for (const auto& arg : args) {
        // use arg to build string
    }

    return "foo";
}

int main() {
    build_string("%.2f and %s", {3.14, "Hello"} );
}

---

The compiler flags were:
g++ -o bla --std=c++11 bla.cxx

The obtained error message is:

bla.cxx: In function ‘int main()’:
bla.cxx:17:49: internal compiler error: in unify, at cp/pt.c:17258
     build_string("%.2f and %s", {3.14, "Hello"} );
                                                 ^
Please submit a full bug report.

[emiddell (eike-h)]

This is the preprocessed source.

[emiddell (eike-h)]

changed affected package from gcc-4.8 to g++-4.8

[Matthias Klose (doko)]

gcc --version ?

[emiddell (eike-h)]

gcc (Ubuntu 4.8.4-2ubuntu1~14.04) 4.8.4