GCC 4.4 does not implement C++11 range loop. What other range loop syntax does it support?

Question

I have some third party tool that uses some c++11 features and I'm needing to compile it under an gcc 4.4. As I'm not at all familiar with c++11 new features yet I thought I'd ask for help after my google search turned up fruitless.

I've enabled c++0x switch but it doesn't help here:

for (auto const& fixup : self->m_Fixups)

The error produced is:

error: expected initializer before ':' token

What other range loop syntax which functions equivalently to C++11 range loop does GCC 4.4 support?

Answer 1

The code is a range-based for-loop which is indeed new in C++11. It is not implemented in GCC 4.4, unlike some other features from C++11. Try this:

for( auto it = self->m_Fixups.begin(); it != self->m_Fixups.end(); ++it )
{
    const auto& fixup = *it;
    // the rest of the code...
}

The above uses some C++11 features which should be available in GCC 4.4.

---

As Ben Voigt pointed out: If you need to make the code more efficient, you might also use this slightly less concise version:

for( auto it = self->m_Fixups.begin(), end = self->m_Fixups.end(); it != end; ++it )
{
    const auto& fixup = *it;
    // the rest of the code...
}