STL initialize iterator problem with compiler change

[brianhray]

This works find in Dev Studio and Codewarrior but does not compile
GCC4:

template <class T>
void SerializeVector(RArchive &ar, vector<T>& v)
{
for (vector<T>::iterator i = v.begin(); i != v.end(); i++)
SerializeVar(ar, *i);
}


I get "error: expected `;' before 'i'". Even if I just have
"vector<T>::iterator i ". Why would changing compilers cause this
problem? Am I doing something wrong? How do I fix?

--bhr

 

[mlimber]

This works find in Dev Studio and Codewarrior but does not compile
GCC4:

template <class T>
void SerializeVector(RArchive &ar, vector<T>& v)
{
for (vector<T>::iterator i = v.begin(); i != v.end(); i++)
SerializeVar(ar, *i);
}


I get "error: expected `;' before 'i'". Even if I just have
"vector<T>::iterator i ". Why would changing compilers cause this
problem? Am I doing something wrong? How do I fix?

--bhr

g++4 is the more conformant compiler on this point. Your for-loop
should read:

for ( typename vector<T>::iterator i = v.begin(); i != v.end(); ++i)

For the change in the increment, see

http://www.parashift.com/c++-faq-lite/operator-overloading.html#faq-13.15

Cheers! --M

 

[mlimber]

Can you say where I can read g++4 information about this topic?

I would like to learn it's behavior about the iterators.

You should ask in a g++ newsgroup, two of which are listed in this FAQ:

http://www.parashift.com/c++-faq-lite/how-to-post.html#faq-5.9

Cheers! --M

 

[Pedro Sousa]

g++4 is the more conformant compiler on this point. Your for-loop
should read:

for ( typename vector<T>::iterator i = v.begin(); i != v.end(); ++i)

Can you say where I can read g++4 information about this topic?

I would like to learn it's behavior about the iterators.

Thanks in advance
Pedro Sousa

 

[Roland Pibinger]

Can you say where I can read g++4 information about this topic?
I would like to learn it's behavior about the iterators.

http://womble.decadentplace.org.uk/c++/template-faq.html#disambiguation