* RE: Confusing template error...
@ 2004-10-18 16:33 lrtaylor
[not found] ` <f233346204101904401de686ed@mail.gmail.com>
0 siblings, 1 reply; 4+ messages in thread
From: lrtaylor @ 2004-10-18 16:33 UTC (permalink / raw)
To: jamesu, gcc-help
Try this:
std::vector<typename type>::const_iterator pos;
Thanks,
Lyle
-----Original Message-----
From: gcc-help-owner@gcc.gnu.org [mailto:gcc-help-owner@gcc.gnu.org] On
Behalf Of James Urquhart
Sent: Saturday, October 16, 2004 4:07 PM
To: gcc-help@gcc.gnu.org
Subject: Confusing template error...
Hi there,
I was wondering if anyone has encountered this rather bizzare syntax
error before.
The code is as follows (NOTE: this is inside a class { }) :
template <class type>
inline OutputStream & operator << (OutputStream & out, const
std::vector<type> &v)
{
std::vector<type>::const_iterator pos;
pos = v.begin() ;
while (pos != v.end())
{
out << *pos++ ;
}
return out ;
}
(using the good ol' STL vector)
in the "const_iterator" line, GCC claims :
error: expected `;' before "pos"
in addition, every time the "<<" operator is used, GCC claims :
error: dependent-name ` std::vector<type,std::allocator<_CharT>
>::const_iterator' is parsed as a non-type, but instantiation yields a
type
note: say `typename std::vector<type,std::allocator<_CharT>
>::const_iterator' if a type is meant
(basically referring again to that line)
If i remove the "pos;" at the end of the line, gcc seems to accept it
- but then i don't have a "pos" variable, which is pretty useless.
Now onto the next problem...
With this code (again, in a class { }) :
template <class type>
inline InputStream & operator >> (InputStream & in, std::vector<type>
&v)
{
std::vector<type>::iterator pos = v.begin() ;
while (pos != v.end())
{
in >> *pos++ ;
}
return in ;
}
Every time ">>" is used on this class, GCC claims on the "iterator"
line:
error: dependent-name ` std::vector<type,std::allocator<_CharT>
>::iterator' is parsed as a non-type, but instantiation yields a type
note: say `typename std::vector<type,std::allocator<_CharT>
>::iterator' if a type is meant.
And the gcc variant :
gcc version 3.4.2 (Gentoo Linux 3.4.2-r2, ssp-3.4.1-1, pie-8.7.6.5)
Thanks for any help.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Confusing template error...
[not found] ` <f233346204101904401de686ed@mail.gmail.com>
@ 2004-10-21 12:32 ` James Urquhart
2004-10-24 2:01 ` Jeffrey Holle
0 siblings, 1 reply; 4+ messages in thread
From: James Urquhart @ 2004-10-21 12:32 UTC (permalink / raw)
To: gcc-help
Unfortunatly, the solution does not seem to work.
"std::vector<typename type>::const_iterator pos;"
Gives me the errors:
error: template argument 1 is invalid
error: template argument 2 is invalid
error: expected `;' before '::' token
I also tried doing :
"typename std::vector<type>::const_iterator pos;"
As someone else suggested, but that gives me the same errors as previously.
On Mon, 18 Oct 2004 10:33:09 -0600, lrtaylor@micron.com
<lrtaylor@micron.com> wrote:
> Try this:
>
> std::vector<typename type>::const_iterator pos;
>
> Thanks,
> Lyle
>
>
>
>
> -----Original Message-----
> From: gcc-help-owner@gcc.gnu.org [mailto:gcc-help-owner@gcc.gnu.org] On
> Behalf Of James Urquhart
> Sent: Saturday, October 16, 2004 4:07 PM
> To: gcc-help@gcc.gnu.org
> Subject: Confusing template error...
>
> Hi there,
>
> I was wondering if anyone has encountered this rather bizzare syntax
> error before.
>
> The code is as follows (NOTE: this is inside a class { }) :
>
> template <class type>
> inline OutputStream & operator << (OutputStream & out, const
> std::vector<type> &v)
> {
> std::vector<type>::const_iterator pos;
> pos = v.begin() ;
> while (pos != v.end())
> {
> out << *pos++ ;
> }
> return out ;
> }
>
> (using the good ol' STL vector)
>
> in the "const_iterator" line, GCC claims :
> error: expected `;' before "pos"
>
> in addition, every time the "<<" operator is used, GCC claims :
> error: dependent-name ` std::vector<type,std::allocator<_CharT>
> >::const_iterator' is parsed as a non-type, but instantiation yields a
> type
> note: say `typename std::vector<type,std::allocator<_CharT>
> >::const_iterator' if a type is meant
>
> (basically referring again to that line)
> If i remove the "pos;" at the end of the line, gcc seems to accept it
> - but then i don't have a "pos" variable, which is pretty useless.
>
> Now onto the next problem...
>
> With this code (again, in a class { }) :
>
> template <class type>
> inline InputStream & operator >> (InputStream & in, std::vector<type>
> &v)
> {
> std::vector<type>::iterator pos = v.begin() ;
> while (pos != v.end())
> {
> in >> *pos++ ;
> }
> return in ;
> }
>
> Every time ">>" is used on this class, GCC claims on the "iterator"
> line:
> error: dependent-name ` std::vector<type,std::allocator<_CharT>
> >::iterator' is parsed as a non-type, but instantiation yields a type
> note: say `typename std::vector<type,std::allocator<_CharT>
> >::iterator' if a type is meant.
>
> And the gcc variant :
> gcc version 3.4.2 (Gentoo Linux 3.4.2-r2, ssp-3.4.1-1, pie-8.7.6.5)
>
> Thanks for any help.
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Confusing template error...
2004-10-21 12:32 ` James Urquhart
@ 2004-10-24 2:01 ` Jeffrey Holle
0 siblings, 0 replies; 4+ messages in thread
From: Jeffrey Holle @ 2004-10-24 2:01 UTC (permalink / raw)
To: gcc-help
If I were trying this, I'd follow the "note" suggestion in gcc's error
message. That is:
typename std::vector<typename type>::const_iterator pos;
James Urquhart wrote:
> Unfortunatly, the solution does not seem to work.
>
> "std::vector<typename type>::const_iterator pos;"
> Gives me the errors:
> error: template argument 1 is invalid
> error: template argument 2 is invalid
> error: expected `;' before '::' token
>
> I also tried doing :
> "typename std::vector<type>::const_iterator pos;"
> As someone else suggested, but that gives me the same errors as previously.
>
> On Mon, 18 Oct 2004 10:33:09 -0600, lrtaylor@micron.com
> <lrtaylor@micron.com> wrote:
>
>>Try this:
>>
>> std::vector<typename type>::const_iterator pos;
>>
>>Thanks,
>>Lyle
>>
>>
>>
>>
>>-----Original Message-----
>>From: gcc-help-owner@gcc.gnu.org [mailto:gcc-help-owner@gcc.gnu.org] On
>>Behalf Of James Urquhart
>>Sent: Saturday, October 16, 2004 4:07 PM
>>To: gcc-help@gcc.gnu.org
>>Subject: Confusing template error...
>>
>>Hi there,
>>
>>I was wondering if anyone has encountered this rather bizzare syntax
>>error before.
>>
>>The code is as follows (NOTE: this is inside a class { }) :
>>
>> template <class type>
>> inline OutputStream & operator << (OutputStream & out, const
>>std::vector<type> &v)
>> {
>> std::vector<type>::const_iterator pos;
>> pos = v.begin() ;
>> while (pos != v.end())
>> {
>> out << *pos++ ;
>> }
>> return out ;
>> }
>>
>>(using the good ol' STL vector)
>>
>>in the "const_iterator" line, GCC claims :
>>error: expected `;' before "pos"
>>
>>in addition, every time the "<<" operator is used, GCC claims :
>>error: dependent-name ` std::vector<type,std::allocator<_CharT>
>>
>>>::const_iterator' is parsed as a non-type, but instantiation yields a
>>
>>type
>>note: say `typename std::vector<type,std::allocator<_CharT>
>>
>>>::const_iterator' if a type is meant
>>
>>(basically referring again to that line)
>>If i remove the "pos;" at the end of the line, gcc seems to accept it
>>- but then i don't have a "pos" variable, which is pretty useless.
>>
>>Now onto the next problem...
>>
>>With this code (again, in a class { }) :
>>
>>template <class type>
>> inline InputStream & operator >> (InputStream & in, std::vector<type>
>>&v)
>> {
>> std::vector<type>::iterator pos = v.begin() ;
>> while (pos != v.end())
>> {
>> in >> *pos++ ;
>> }
>> return in ;
>> }
>>
>>Every time ">>" is used on this class, GCC claims on the "iterator"
>>line:
>>error: dependent-name ` std::vector<type,std::allocator<_CharT>
>>
>>>::iterator' is parsed as a non-type, but instantiation yields a type
>>
>>note: say `typename std::vector<type,std::allocator<_CharT>
>>
>>>::iterator' if a type is meant.
>>
>>And the gcc variant :
>>gcc version 3.4.2 (Gentoo Linux 3.4.2-r2, ssp-3.4.1-1, pie-8.7.6.5)
>>
>>Thanks for any help.
>>
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Confusing template error...
@ 2004-10-16 22:06 James Urquhart
0 siblings, 0 replies; 4+ messages in thread
From: James Urquhart @ 2004-10-16 22:06 UTC (permalink / raw)
To: gcc-help
Hi there,
I was wondering if anyone has encountered this rather bizzare syntax
error before.
The code is as follows (NOTE: this is inside a class { }) :
template <class type>
inline OutputStream & operator << (OutputStream & out, const
std::vector<type> &v)
{
std::vector<type>::const_iterator pos;
pos = v.begin() ;
while (pos != v.end())
{
out << *pos++ ;
}
return out ;
}
(using the good ol' STL vector)
in the "const_iterator" line, GCC claims :
error: expected `;' before "pos"
in addition, every time the "<<" operator is used, GCC claims :
error: dependent-name ` std::vector<type,std::allocator<_CharT>
>::const_iterator' is parsed as a non-type, but instantiation yields a
type
note: say `typename std::vector<type,std::allocator<_CharT>
>::const_iterator' if a type is meant
(basically referring again to that line)
If i remove the "pos;" at the end of the line, gcc seems to accept it
- but then i don't have a "pos" variable, which is pretty useless.
Now onto the next problem...
With this code (again, in a class { }) :
template <class type>
inline InputStream & operator >> (InputStream & in, std::vector<type> &v)
{
std::vector<type>::iterator pos = v.begin() ;
while (pos != v.end())
{
in >> *pos++ ;
}
return in ;
}
Every time ">>" is used on this class, GCC claims on the "iterator" line:
error: dependent-name ` std::vector<type,std::allocator<_CharT>
>::iterator' is parsed as a non-type, but instantiation yields a type
note: say `typename std::vector<type,std::allocator<_CharT>
>::iterator' if a type is meant.
And the gcc variant :
gcc version 3.4.2 (Gentoo Linux 3.4.2-r2, ssp-3.4.1-1, pie-8.7.6.5)
Thanks for any help.
^ permalink raw reply [flat|nested] 4+ messages in thread
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2004-10-18 16:33 Confusing template error lrtaylor
[not found] ` <f233346204101904401de686ed@mail.gmail.com>
2004-10-21 12:32 ` James Urquhart
2004-10-24 2:01 ` Jeffrey Holle
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2004-10-16 22:06 James Urquhart
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