http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57769
--- Comment #2 from Henri <korpela.henri.mikael at gmail dot com> ---
(In reply to Paolo Carlini from comment #1)
> Please add here a minimized self-contained reproducer. Also, you are not
> saying which version of GCC you are using.
My GCC version is currently 4.7. I use Code::Blocks as my IDE.
Interesting that my attempt to reproduce the internal compiler error fails in
the self-contained code below (with compiler errors)...
class C{
public:
C(C&&) = default;
explicit C(int (&array)[2][2]) : C({
._m_array = {
{array[0][0], array[0][1]},
{array[1][0], array[1][1]}
}
})
{
}
private:
int _m_array[2][2];
};
int main(void){
int array[2][2] = {
{1, 2},
{3, 4}
};
C c(array);
return 0;
}
||In constructor 'C::C(int (&)[2][2])':|
|42|error: no matching function for call to 'C::C(<brace-enclosed initializer
list>)'|
|42|note: candidates are:|
|37|note: C::C(int (&)[2][2])|
|37|note: no known conversion for argument 1 from '<brace-enclosed
initializer list>' to 'int (&)[2][2]'|
|35|note: constexpr C::C(C&&)|
|35|note: no known conversion for argument 1 from '<brace-enclosed
initializer list>' to 'C&&'|
||=== Build finished: 1 errors, 0 warnings (0 minutes, 0 seconds) ===|
...and somehow succeeds here:
class C{
public:
C(C&&) = default;
explicit C(int (&&array)[2][2]) : C({
._m_array = {
{array[0][0], array[0][1]},
{array[1][0], array[1][1]}
}
})
{
}
private:
int _m_array[2][2];
};
int main(void){
C c({{
{1, 2},
{3, 4}
}});
return 0;
}
||In constructor 'C::C(int (&&)[2][2])':|
|42|internal compiler error: in process_init_constructor_array, at
cp/typeck2.c:1080|
||=== Build finished: 1 errors, 0 warnings (0 minutes, 0 seconds) ===|
This leads me to believe that the compiler fails to parse rvalue references to
multidimensional arrays in a scenario like this.
