Wired things happen with g++-3.3.5

[PengYu.UT]

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?

g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o main.cc
main.cc: In member function `void C::doit1(typename A<T>::iterator*)':
main.cc:20: error: parse error before `;' token
main.cc: In function `int main(int, char**)':
main.cc:25: warning: unused parameter `int argc'
main.cc:25: warning: unused parameter `char**argv'
make: *** [main.o] Error 1
/////////////////////

template <typename T>
class A {
public:
class iterator{
};
};

class B {
public:
template <typename T>
void doit(typename A<T>::iterator *it){
}
};

class C {
public:
template <typename T>
void doit1(typename A<T>::iterator *it){
B b;
b.doit<T>(it);//line 20
}
};

int main(int argc, char *argv[])
{
A<int>::iterator it1;
C c;
c.doit1<int>(&it1);
}

[red floyd]

Pe*******@gmail.com wrote:

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?

g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o main.cc
main.cc: In member function `void C::doit1(typename A<T>::iterator*)':
main.cc:20: error: parse error before `;' token
main.cc: In function `int main(int, char**)':
main.cc:25: warning: unused parameter `int argc'
main.cc:25: warning: unused parameter `char**argv'
make: *** [main.o] Error 1
/////////////////////

template <typename T>
class A {
public:
class iterator{
};
};

class B {
public:
template <typename T>
void doit(typename A<T>::iterator *it){
}
};

class C {
public:
template <typename T>
void doit1(typename A<T>::iterator *it){
B b;
b.doit<T>(it);//line 20
}
};

int main(int argc, char *argv[])
{
A<int>::iterator it1;
C c;
c.doit1<int>(&it1);
}

Comeau online seems to like it. Cross posting to gnu.g++.help

[Ian]

Pe*******@gmail.com wrote:

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?

I see neither errors nor warning with gcc 3.4.2.

Ian

[Branimir Maksimovic]

<Pe*******@gmail.com> wrote in message
news:11**********************@g47g2000cwa.googlegr oups.com...

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?

g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o main.cc
main.cc: In member function `void C::doit1(typename A<T>::iterator*)':
main.cc:20: error: parse error before `;' token ..... class B {
public:
template <typename T>
void doit(typename A<T>::iterator *it){
}
};

class C {
public:
template <typename T>
void doit1(typename A<T>::iterator *it){
B b;
b.doit<T>(it);//line 20
try with
b.template doit<T>(it);
Perhaps gcc 3.3 can't figure out that doit is template function,
but 3.4.2 compiles ok.
}
};

Greetings, Bane.

[Paul Pluzhnikov]

red floyd <no*****@here.dude> writes:

Pe*******@gmail.com wrote:

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?
g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o

Comeau online seems to like it. Cross posting to gnu.g++.help

g++ 3.4.0, 3.4.3 and 4.0.0 also accept this.
Looks like a bug that has been fixed.

Cheers,
--
In order to understand recursion you must first understand recursion.
Remove /-nsp/ for email.

[PengYu.UT]

Branimir Maksimovic wrote:

<Pe*******@gmail.com> wrote in message
news:11**********************@g47g2000cwa.googlegr oups.com...

The following gives an error at line 20. However, if I change all
"doit1" to "doit". I will only get warnings. Is there any thing wrong
with gcc?

g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o main.cc
main.cc: In member function `void C::doit1(typename A<T>::iterator*)':
main.cc:20: error: parse error before `;' token

....

class B {
public:
template <typename T>
void doit(typename A<T>::iterator *it){
}
};

class C {
public:
template <typename T>
void doit1(typename A<T>::iterator *it){
B b;
b.doit<T>(it);//line 20

try with
b.template doit<T>(it);
Perhaps gcc 3.3 can't figure out that doit is template function,
but 3.4.2 compiles ok.

}
};

Greetings, Bane.

It is as you pointed out.

Is this form of envoking template member function "b.template
doit<T>(it);" in the C++ Standard?

Is it actually a bug of gcc 3.3?

[Greg Comeau]

In article <11**********************@g49g2000cwa.googlegroups .com>,
Pe*******@gmail.com <Pe*******@gmail.com> wrote:

Is this form of envoking template member function "b.template
doit<T>(it);" in the C++ Standard?

Is it actually a bug of gcc 3.3?

Yes, for a round about mild discussion including this, see
http://www.comeaucomputing.com/techt...lates/#esprobs
--
Greg Comeau / Celebrating 20 years of Comeauity!
Comeau C/C++ ONLINE ==> http://www.comeaucomputing.com/tryitout
World Class Compilers: Breathtaking C++, Amazing C99, Fabulous C90.
Comeau C/C++ with Dinkumware's Libraries... Have you tried it?

[Branimir Maksimovic]

<Pe*******@gmail.com> wrote in message
news:11**********************@g49g2000cwa.googlegr oups.com...

Branimir Maksimovic wrote:

<Pe*******@gmail.com> wrote in message
news:11**********************@g47g2000cwa.googlegr oups.com...

> The following gives an error at line 20. However, if I change all
> "doit1" to "doit". I will only get warnings. Is there any thing wrong
> with gcc?
>
> g++-3.3 -g -Wall -W -I/usr/local/include/clapack/ -c -o main.o main.cc
> main.cc: In member function `void C::doit1(typename A<T>::iterator*)':
> main.cc:20: error: parse error before `;' token ....

> class B {
> public:
> template <typename T>
> void doit(typename A<T>::iterator *it){
> }
> };
>
> class C {
> public:
> template <typename T>
> void doit1(typename A<T>::iterator *it){
> B b;
> b.doit<T>(it);//line 20

try with
b.template doit<T>(it);
Perhaps gcc 3.3 can't figure out that doit is template function,
but 3.4.2 compiles ok.

> }
> };
>

Greetings, Bane.

It is as you pointed out.

Is this form of envoking template member function "b.template
doit<T>(it);" in the C++ Standard?

It is described in 5.2 postfix expressions.
Is it actually a bug of gcc 3.3?

Standard says this is optional, not mandatory, so it could be bug, but I'm
not really
sure.

Greetings, Bane.