* vector instantiation
@ 2003-04-18 20:06 Andrey R. Urazov
2003-04-19 8:44 ` Alex Vinokur
2003-04-19 15:12 ` Jaap Haitsma
0 siblings, 2 replies; 7+ messages in thread
From: Andrey R. Urazov @ 2003-04-18 20:06 UTC (permalink / raw)
To: gcc-help
Hello,
Concerning the problem of instantiation of STL vector with the template
parameter size of array. Sorry, but I forgot to include the program code
in my posting. Here it is:
#include <vector>
using namespace std;
int main()
{
vector<size_t[4]> v(10);
return 0;
}
And compiling this with gcc-3.2.2 I get:
/usr/include/c++/3.2/bits/stl_vector.h: Dans constructor «
std::vector<_Tp,
_Alloc>::vector(unsigned int) [with _Tp = size_t[4], _Alloc =
std::allocator<size_t[4]>] »:
test.cpp:7: instancié à partir d'ici
/usr/include/c++/3.2/bits/stl_vector.h:342: ISO C++ interdit le
transtypage
vers un type tableau « size_t[4] »
P.S. Just in case, please CC me since I'm not on the mailing list. Thank
you.
Best regards,
Andrey Urazov.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: vector instantiation
2003-04-18 20:06 vector instantiation Andrey R. Urazov
@ 2003-04-19 8:44 ` Alex Vinokur
2003-04-19 15:12 ` Jaap Haitsma
1 sibling, 0 replies; 7+ messages in thread
From: Alex Vinokur @ 2003-04-19 8:44 UTC (permalink / raw)
To: gcc-help
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"Andrey R. Urazov" <coola@ngs.ru> wrote in message news:1050685291.981.5.camel@r-a117-bur...
Hello,
> Concerning the problem of instantiation of STL vector with the template
> parameter size of array. Sorry, but I forgot to include the program code
> in my posting. Here it is:
>
> #include <vector>
>
> using namespace std;
>
> int main()
> {
> vector<size_t[4]> v(10);
vector<char> v1(10), v2(20);
vector<int> v3(10), v4(20), v3 (123);
>
> return 0;
> }
>
>
>
>
> And compiling this with gcc-3.2.2 I get:
>
> /usr/include/c++/3.2/bits/stl_vector.h: Dans constructor «
> std::vector<_Tp,
> _Alloc>::vector(unsigned int) [with _Tp = size_t[4], _Alloc =
> std::allocator<size_t[4]>] »:
> test.cpp:7: instancié à partir d'ici
> /usr/include/c++/3.2/bits/stl_vector.h:342: ISO C++ interdit le
> transtypage
> vers un type tableau « size_t[4] »
>
>
> P.S. Just in case, please CC me since I'm not on the mailing list. Thank
> you.
>
> Best regards,
> Andrey Urazov.
>
>
=================================
Alex Vinokur
mailto:alexvn@connect.to
http://www.simtel.net/pub/oth/19088.html
=================================
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: vector instantiation
2003-04-18 20:06 vector instantiation Andrey R. Urazov
2003-04-19 8:44 ` Alex Vinokur
@ 2003-04-19 15:12 ` Jaap Haitsma
2003-04-21 8:11 ` Andrey R. Urazov
1 sibling, 1 reply; 7+ messages in thread
From: Jaap Haitsma @ 2003-04-19 15:12 UTC (permalink / raw)
To: Andrey R. Urazov, gcc-help
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Hi Andrey,
I'm not sure if it is allowed to put arrays as a
parameter of the template. Why don't you make a class
or a struct which contains this array of 4 size_t's
Jaap
--- "Andrey R. Urazov" <coola@ngs.ru> wrote:
> Hello,
>
> Concerning the problem of instantiation of STL
> vector with the template
> parameter size of array. Sorry, but I forgot to
> include the program code
> in my posting. Here it is:
>
> #include <vector>
>
> using namespace std;
>
> int main()
> {
> vector<size_t[4]> v(10);
>
> return 0;
> }
>
>
>
>
> And compiling this with gcc-3.2.2 I get:
>
> /usr/include/c++/3.2/bits/stl_vector.h: Dans
> constructor «
> std::vector<_Tp,
> _Alloc>::vector(unsigned int) [with _Tp =
> size_t[4], _Alloc =
> std::allocator<size_t[4]>] »:
> test.cpp:7: instancié à partir d'ici
> /usr/include/c++/3.2/bits/stl_vector.h:342: ISO C++
> interdit le
> transtypage
> vers un type tableau « size_t[4] »
>
>
> P.S. Just in case, please CC me since I'm not on the
> mailing list. Thank
> you.
>
> Best regards,
> Andrey Urazov.
>
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: vector instantiation
2003-04-19 15:12 ` Jaap Haitsma
@ 2003-04-21 8:11 ` Andrey R. Urazov
2003-04-21 16:24 ` drkm
0 siblings, 1 reply; 7+ messages in thread
From: Andrey R. Urazov @ 2003-04-21 8:11 UTC (permalink / raw)
To: Jaap Haitsma, gcc-help
Le sam 19/04/2003 à 20:10, Jaap Haitsma a écrit :
> Hi Andrey,
>
> I'm not sure if it is allowed to put arrays as a
> parameter of the template. Why don't you make a class
> or a struct which contains this array of 4 size_t's
Because an array of 4 elements is just a particular case. In general
there are n elements and n is known at compile time.
Best regards,
Andrey Urazov
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: vector instantiation
2003-04-21 8:11 ` Andrey R. Urazov
@ 2003-04-21 16:24 ` drkm
0 siblings, 0 replies; 7+ messages in thread
From: drkm @ 2003-04-21 16:24 UTC (permalink / raw)
To: gcc-help
--- "Andrey R. Urazov" <coola@ngs.ru> a écrit :
> > I'm not sure if it is allowed to put arrays as a
> > parameter of the template. Why don't you make a class
> > or a struct which contains this array of 4 size_t's
> Because an array of 4 elements is just a particular case. In general
> there are n elements and n is known at compile time.
What do you think about
template < typename T , size_t N >
struct MyWrapper
{
T myArray[ N ] ;
} ;
std::vector< MyWrapper< size_t , 4 > >
the_array ;
?
But why do you not want the following :
std::vector< std::vector< size_t > >
the_array ;
or
std::vector< boost::array< size_t , 4 > >
the_array ;
?
Best regards,
--drkm
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^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: vector instantiation
2003-04-17 8:47 Andrey R. Urazov
@ 2003-04-17 11:55 ` Alex Vinokur
0 siblings, 0 replies; 7+ messages in thread
From: Alex Vinokur @ 2003-04-17 11:55 UTC (permalink / raw)
To: gcc-help
"Andrey R. Urazov" <coola@ngs.ru> wrote in message news:1050558071.1020.15.camel@r-a117-bur...
> Hello,
>
> I tried to declare vector with the template parameter of array and,
> unfortunately, the compilation failed with the following error message
> (I'm using gcc-3.2.2):
>
> /usr/include/c++/3.2/bits/stl_vector.h: In constructor `std::vector<_Tp,
> _Alloc>::vector(unsigned int) [with _Tp = size_t[4], _Alloc =
> std::allocator<size_t[4]>]':
> test.cpp:7: instantiated from here
> /usr/include/c++/3.2/bits/stl_vector.h:342: ISO C++ forbids casting to
> an array
> type `size_t[4]'
>
Could you send your code to news:gmane.comp.gcc.help ?
> I think this is incorrect behavior. But, of course, I may be wrong. Any
> ideas? Is permitted to declare STL containers with the elements of
> arrays in the C++ standard?
>
> Best regards,
> Andrey Urazov.
>
>
=================================
Alex Vinokur
mailto:alexvn@connect.to
http://www.simtel.net/pub/oth/19088.html
=================================
^ permalink raw reply [flat|nested] 7+ messages in thread
* vector instantiation
@ 2003-04-17 8:47 Andrey R. Urazov
2003-04-17 11:55 ` Alex Vinokur
0 siblings, 1 reply; 7+ messages in thread
From: Andrey R. Urazov @ 2003-04-17 8:47 UTC (permalink / raw)
To: gcc-help
Hello,
I tried to declare vector with the template parameter of array and,
unfortunately, the compilation failed with the following error message
(I'm using gcc-3.2.2):
/usr/include/c++/3.2/bits/stl_vector.h: In constructor `std::vector<_Tp,
_Alloc>::vector(unsigned int) [with _Tp = size_t[4], _Alloc =
std::allocator<size_t[4]>]':
test.cpp:7: instantiated from here
/usr/include/c++/3.2/bits/stl_vector.h:342: ISO C++ forbids casting to
an array
type `size_t[4]'
I think this is incorrect behavior. But, of course, I may be wrong. Any
ideas? Is permitted to declare STL containers with the elements of
arrays in the C++ standard?
Best regards,
Andrey Urazov.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2003-04-18 20:06 vector instantiation Andrey R. Urazov
2003-04-19 8:44 ` Alex Vinokur
2003-04-19 15:12 ` Jaap Haitsma
2003-04-21 8:11 ` Andrey R. Urazov
2003-04-21 16:24 ` drkm
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